Further reduce the encoded blank values back to blank in the realtime API.

(closes issue #16533)
 Reported by: sergee
 Patches: 
       200100104__issue16533.diff.txt uploaded by tilghman (license 14)
 Tested by: sergee


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@237410 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/config.c

@@ -2155,6 +2155,9 @@ struct ast_variable *ast_load_realtime(const char *family, ...)
 			else
 				res = cur->next;
 			freeme = cur;
+		} else if (cur->value[0] == ' ' && cur->value[1] == '\0') {
+			cur->value[0] = '\0';
+			prev = cur;
 		} else {
 			prev = cur;
 		}