Initialize a variable to avoid a warning when the compiler

(and/or the optimization level) may think it is used uninitialized.
The code was indeed correct, but unfortunately the result of
some compiler checks such as -Wunused and -Wuninitialized depends
heavily on the optimization level.



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@75365 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_minivm.c

@@ -1982,7 +1982,7 @@ static int minivm_accmess_exec(struct ast_channel *chan, void *data)
 	char filename[PATH_MAX];
 	char tmp[PATH_MAX];
 	char *domain;
-	char *tmpptr;
+	char *tmpptr = NULL;
 	struct minivm_account *vmu;
 	char *username = argv[0];
 	struct ast_flags flags = { 0 };