Merge the 'safe' parts of my StrnCpy patch - many of the users really wanted

a pstrcpy/fstrcpy or at most a safe_strcpy().

These have the advantage of being compiler-verifiable.

Get these out of the way, along with a rewrite of 'get_short_archi' in the
spoolss client and server.  (This pushes around const string pointers, rather
than copied strings).

Andrew Bartlett

source/rpc_parse/parse_spoolss.c

@@ -5438,8 +5438,9 @@ BOOL make_spoolss_driver_info_3(TALLOC_CTX *mem_ctx,
 					done = True;
 				else
 					null_char = True;
+
 				break;
-					
+
 			default:
 				null_char = False;
 				;;