add note about example

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5872 65c4cc65-6c06-0410-ace0-fbb531ad65f3
20 years ago · cf5b8dba96
parent fb16b5cb0a
commit cf5b8dba96
1 changed files with 5 additions and 0 deletions
--- a/include/asterisk.h
+++ b/include/asterisk.h
@ -91,6 +91,11 @@ void ast_unregister_file_version(const char *file);
 * \code
 * ASTERISK_FILE_VERSION(__FILE__, "\$Revision\$")
 * \endcode
+ *
+ * \note The dollar signs above have been protected with backslashes to keep
+ * CVS from modifying them in this file; under normal circumstances they would
+ * not be present and CVS would expand the Revision keyword into the file's
+ * revision number.
 */
 #ifdef __GNUC__
 #define ASTERISK_FILE_VERSION(file, version) \