diff --git a/src/tools/linux/symupload/minidump_upload.cc b/src/tools/linux/symupload/minidump_upload.cc
index 144c8bf6..94c3492c 100644
--- a/src/tools/linux/symupload/minidump_upload.cc
+++ b/src/tools/linux/symupload/minidump_upload.cc
@@ -41,28 +41,29 @@
 #include <string>
 
 #include "common/linux/http_upload.h"
+#include "common/using_std_string.h"
 
 using google_breakpad::HTTPUpload;
 
 struct Options {
-  std::string minidumpPath;
-  std::string uploadURLStr;
-  std::string product;
-  std::string version;
-  std::string proxy;
-  std::string proxy_user_pwd;
+  string minidumpPath;
+  string uploadURLStr;
+  string product;
+  string version;
+  string proxy;
+  string proxy_user_pwd;
   bool success;
 };
 
 //=============================================================================
 static void Start(Options *options) {
-  std::map<std::string, std::string> parameters;
+  std::map<string, string> parameters;
   // Add parameters
   parameters["prod"] = options->product;
   parameters["ver"] = options->version;
 
   // Send it
-  std::string response, error;
+  string response, error;
   bool success = HTTPUpload::SendRequest(options->uploadURLStr,
                                          parameters,
                                          options->minidumpPath,
@@ -78,9 +79,9 @@ static void Start(Options *options) {
     printf("Successfully sent the minidump file.\n");
   } else {
     printf("Failed to send minidump: %s\n", error.c_str());
-    printf("Response:\n");
-    printf("%s\n", response.c_str());
   }
+  printf("Response:\n");
+  printf("%s\n", response.c_str());
   options->success = success;
 }
 
@@ -106,7 +107,7 @@ Usage(int argc, const char *argv[]) {
 static void
 SetupOptions(int argc, const char *argv[], Options *options) {
   extern int optind;
-  char ch;
+  int ch;
 
   while ((ch = getopt(argc, (char * const *)argv, "p:u:v:x:h?")) != -1) {
     switch (ch) {
@@ -124,8 +125,9 @@ SetupOptions(int argc, const char *argv[], Options *options) {
         break;
 
       default:
+        fprintf(stderr, "Invalid option '%c'\n", ch);
         Usage(argc, argv);
-        exit(0);
+        exit(1);
         break;
     }
   }
@@ -141,7 +143,7 @@ SetupOptions(int argc, const char *argv[], Options *options) {
 }
 
 //=============================================================================
-int main (int argc, const char * argv[]) {
+int main(int argc, const char* argv[]) {
   Options options;
   SetupOptions(argc, argv, &options);
   Start(&options);
diff --git a/src/tools/linux/symupload/sym_upload.cc b/src/tools/linux/symupload/sym_upload.cc
index 5b1ee6f6..75ad206a 100644
--- a/src/tools/linux/symupload/sym_upload.cc
+++ b/src/tools/linux/symupload/sym_upload.cc
@@ -50,23 +50,24 @@
 #include <vector>
 
 #include "common/linux/http_upload.h"
+#include "common/using_std_string.h"
 
 using google_breakpad::HTTPUpload;
 
 typedef struct {
-  std::string symbolsPath;
-  std::string uploadURLStr;
-  std::string proxy;
-  std::string proxy_user_pwd;
-  std::string version;
+  string symbolsPath;
+  string uploadURLStr;
+  string proxy;
+  string proxy_user_pwd;
+  string version;
   bool success;
 } Options;
 
-static void TokenizeByChar(const std::string &source_string,
-              int c, std::vector<std::string> *results) {
+static void TokenizeByChar(const string &source_string,
+              int c, std::vector<string> *results) {
   assert(results);
-  std::string::size_type cur_pos = 0, next_pos = 0;
-  while ((next_pos = source_string.find(c, cur_pos)) != std::string::npos) {
+  string::size_type cur_pos = 0, next_pos = 0;
+  while ((next_pos = source_string.find(c, cur_pos)) != string::npos) {
     if (next_pos != cur_pos)
       results->push_back(source_string.substr(cur_pos, next_pos - cur_pos));
     cur_pos = next_pos + 1;
@@ -78,17 +79,17 @@ static void TokenizeByChar(const std::string &source_string,
 //=============================================================================
 // Parse out the module line which have 5 parts.
 // MODULE <os> <cpu> <uuid> <module-name>
-static bool ModuleDataForSymbolFile(const std::string &file,
-                                    std::vector<std::string> *module_parts) {
+static bool ModuleDataForSymbolFile(const string &file,
+                                    std::vector<string> *module_parts) {
   assert(module_parts);
   const size_t kModulePartNumber = 5;
-  FILE *fp = fopen(file.c_str(), "r");
+  FILE* fp = fopen(file.c_str(), "r");
   if (fp) {
     char buffer[1024];
     if (fgets(buffer, sizeof(buffer), fp)) {
-      std::string line(buffer);
-      std::string::size_type line_break_pos = line.find_first_of('\n');
-      if (line_break_pos == std::string::npos) {
+      string line(buffer);
+      string::size_type line_break_pos = line.find_first_of('\n');
+      if (line_break_pos == string::npos) {
         assert(0 && "The file is invalid!");
         fclose(fp);
         return false;
@@ -106,10 +107,10 @@ static bool ModuleDataForSymbolFile(const std::string &file,
 }
 
 //=============================================================================
-static std::string CompactIdentifier(const std::string &uuid) {
-  std::vector<std::string> components;
+static string CompactIdentifier(const string &uuid) {
+  std::vector<string> components;
   TokenizeByChar(uuid, '-', &components);
-  std::string result;
+  string result;
   for (size_t i = 0; i < components.size(); ++i)
     result += components[i];
   return result;
@@ -117,15 +118,15 @@ static std::string CompactIdentifier(const std::string &uuid) {
 
 //=============================================================================
 static void Start(Options *options) {
-  std::map<std::string, std::string> parameters;
+  std::map<string, string> parameters;
   options->success = false;
-  std::vector<std::string> module_parts;
+  std::vector<string> module_parts;
   if (!ModuleDataForSymbolFile(options->symbolsPath, &module_parts)) {
     fprintf(stderr, "Failed to parse symbol file!\n");
     return;
   }
 
-  std::string compacted_id = CompactIdentifier(module_parts[3]);
+  string compacted_id = CompactIdentifier(module_parts[3]);
 
   // Add parameters
   if (!options->version.empty())
@@ -138,7 +139,7 @@ static void Start(Options *options) {
   parameters["debug_file"] = module_parts[4];
   parameters["code_file"] = module_parts[4];
   parameters["debug_identifier"] = compacted_id;
-  std::string response, error;
+  string response, error;
   long response_code;
   bool success = HTTPUpload::SendRequest(options->uploadURLStr,
                                          parameters,
@@ -186,7 +187,7 @@ Usage(int argc, const char *argv[]) {
 static void
 SetupOptions(int argc, const char *argv[], Options *options) {
   extern int optind;
-  char ch;
+  int ch;
 
   while ((ch = getopt(argc, (char * const *)argv, "u:v:x:h?")) != -1) {
     switch (ch) {
@@ -201,8 +202,9 @@ SetupOptions(int argc, const char *argv[], Options *options) {
         break;
 
       default:
+        fprintf(stderr, "Invalid option '%c'\n", ch);
         Usage(argc, argv);
-        exit(0);
+        exit(1);
         break;
     }
   }
@@ -218,7 +220,7 @@ SetupOptions(int argc, const char *argv[], Options *options) {
 }
 
 //=============================================================================
-int main (int argc, const char * argv[]) {
+int main(int argc, const char* argv[]) {
   Options options;
   SetupOptions(argc, argv, &options);
   Start(&options);