this set of changes fixes issue # 10643 by keeping track of the last object defined in a file, and attaching any accumulated comments to that object (category header or variable declaration). The file_save routine also had to be upgraded to output these trailing comments. Config.h was modified to include the trailing comment list on categories and variables.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@81519 65c4cc65-6c06-0410-ace0-fbb531ad65f3

include/asterisk/config.h

@@ -58,6 +58,7 @@ struct ast_variable {
 	int blanklines; 	/*!< Number of blanklines following entry */
 	struct ast_comment *precomments;
 	struct ast_comment *sameline;
+	struct ast_comment *trailing; /*!< the last object in the list will get assigned any trailing comments when EOF is hit */
 	struct ast_variable *next;
 	char stuff[0];
 };