fix an incorrect usage of scanf, where it should be using sscanf, instead,

which was causing asterisk to hang when loading this module
(reported by blitzrage on IRC)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@32867 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_followme.c

@@ -308,9 +308,10 @@ static int reload_followme(void)
 	}
 	featuredigittostr = ast_variable_retrieve(cfg, "general", "featuredigittimeout");
 	
-	if (!ast_strlen_zero(featuredigittostr)) 
-		if (!scanf("%d", &featuredigittimeout))
+	if (!ast_strlen_zero(featuredigittostr)) {
+		if (!sscanf(featuredigittostr, "%d", &featuredigittimeout))
 			featuredigittimeout = 5000;
+	}
 
 	takecallstr = ast_variable_retrieve(cfg, "general", "takecall");
 	if (!ast_strlen_zero(takecallstr))