simplify some code, tweak formatting, and reduce indentation

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@101746 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_authenticate.c

@@ -147,15 +147,22 @@ static int auth_exec(struct ast_channel *chan, void *data)
 				continue;
 			}
 
-			while (!feof(f)) {
+			for (;;) {
 				fgets(buf, sizeof(buf), f);
-				if (!feof(f) && !ast_strlen_zero(buf)) {
+
+				if (feof(f))
+					break;
+
+				if (ast_strlen_zero(buf))
+					continue;
+
 				buf[strlen(buf) - 1] = '\0';
+
 				if (ast_test_flag(&flags, OPT_MULTIPLE)) {
-						md5secret = strchr(buf, ':');
+					md5secret = buf;
+					strsep(&md5secret, ":");
 					if (!md5secret)
 						continue;
-						*md5secret++ = '\0';
 					ast_md5_hash(md5passwd, passwd);
 					if (!strcmp(md5passwd, md5secret)) {
 						if (ast_test_flag(&flags,OPT_ACCOUNT))
@@ -170,7 +177,6 @@ static int auth_exec(struct ast_channel *chan, void *data)
 					}
 				}
 			}
-			}
 
 			fclose(f);