ipa-rmkeytab, ipa-join: don't fail if init of gettext failed

If locale setting was incorect, gettext failed to initialize and scripts
failed. this commit replaces error exit with warning message. (Better to
have untranslated output than fail)

https://fedorahosted.org/freeipa/ticket/5973

Reviewed-By: Petr Spacek <pspacek@redhat.com>

client/ipa-join.c

@@ -1130,7 +1130,7 @@ main(int argc, const char **argv) {
 
     ret = init_gettext();
     if (ret) {
-        exit(2);
+        fprintf(stderr, "Failed to load translations\n");
     }
 
     pc = poptGetContext("ipa-join", argc, (const char **)argv, options, 0);

client/ipa-rmkeytab.c

@@ -180,7 +180,7 @@ main(int argc, const char **argv)
 
     ret = init_gettext();
     if (ret) {
-        exit(1);
+        fprintf(stderr, "Failed to load translations\n");
     }
 
     memset(&ktid, 0, sizeof(ktid));