Set LC_MESSAGES too

I'm not sure this is necessary, but it doesn't hurt.

Author: stefanhaller

pkg/commands/git_commands/rebase.go

@@ -244,8 +244,9 @@ func (self *RebaseCommands) PrepareInteractiveRebaseCommand(opts PrepareInteract
 
 	cmdObj.AddEnvVars(
 		"DEBUG="+debug,
-		"LANG=C",   // Force using English language
-		"LC_ALL=C", // Force using English language
+		"LANG=C",        // Force using English language
+		"LC_ALL=C",      // Force using English language
+		"LC_MESSAGES=C", // Force using English language
 		"GIT_SEQUENCE_EDITOR="+gitSequenceEditor,
 	)
 
@@ -277,8 +278,9 @@ func (self *RebaseCommands) GitRebaseEditTodo(todosFileContent []byte) error {
 
 	cmdObj.AddEnvVars(
 		"DEBUG="+debug,
-		"LANG=C",   // Force using English language
-		"LC_ALL=C", // Force using English language
+		"LANG=C",        // Force using English language
+		"LC_ALL=C",      // Force using English language
+		"LC_MESSAGES=C", // Force using English language
 		"GIT_EDITOR="+ex,
 		"GIT_SEQUENCE_EDITOR="+ex,
 	)

pkg/commands/oscommands/cmd_obj_runner.go

@@ -330,7 +330,7 @@ func (self *cmdObjRunner) runAndDetectCredentialRequest(
 	promptUserForCredential func(CredentialType) <-chan string,
 ) error {
 	// setting the output to english so we can parse it for a username/password request
-	cmdObj.AddEnvVars("LANG=C", "LC_ALL=C")
+	cmdObj.AddEnvVars("LANG=C", "LC_ALL=C", "LC_MESSAGES=C")
 
 	return self.runAndStreamAux(cmdObj, func(handler *cmdHandler, cmdWriter io.Writer) {
 		tr := io.TeeReader(handler.stdoutPipe, cmdWriter)