Revert ticket 20982 changes.

They broke stem, and breaking application compatibility is usually a
bad idea.

This reverts commit 6e10130e18,
commit 78a13df158, and
commit 62f52a888a.

We might re-apply this later, if all the downstream tools can handle
it, and it turns out to be useful for some reason.

src/or/config.c

@@ -4945,12 +4945,12 @@ options_init_from_torrc(int argc, char **argv)
   }
 
   if (config_line_find(cmdline_only_options, "--version")) {
-    printf("Tor %s\n", get_version());
+    printf("Tor version %s.\n",get_version());
     exit(0);
   }
 
   if (config_line_find(cmdline_only_options, "--library-versions")) {
-    printf("Tor %s\n", get_version());
+    printf("Tor version %s. \n", get_version());
     printf("Library versions\tCompiled\t\tRuntime\n");
     printf("Libevent\t\t%-15s\t\t%s\n",
                       tor_libevent_get_header_version_str(),

src/tools/tor-resolve.c

@@ -355,7 +355,7 @@ main(int argc, char **argv)
     usage();
 
   if (!strcmp(arg[0],"--version")) {
-    printf("Tor %s\n",VERSION);
+    printf("Tor version %s.\n",VERSION);
     return 0;
   }
   while (n_args && *arg[0] == '-') {