Support greetingsfolder as documented in voicemail.conf.sample.

(closes issue #17870)
Reported by: edhorton
Patches:
      __20100816-app_voicemail-greetingsfolder-support.txt uploaded by lmadsen (license 10)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.2@302833 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_voicemail.c

@@ -10976,6 +10976,9 @@ static int load_config(int reload)
 		}
 		if ((val = ast_variable_retrieve(cfg, "general", "greetingfolder"))) {
 			ast_copy_string(greetingfolder, val, sizeof(greetingfolder));
+		} else if ((val = ast_variable_retrieve(cfg, "general", "greetingsfolder"))) {
+			/* Also support greetingsfolder as documented in voicemail.conf.sample */
+			ast_copy_string(greetingfolder, val, sizeof(greetingfolder));
 		} else {
 			ast_copy_string(greetingfolder, imapfolder, sizeof(greetingfolder));
 		}