Added a few words in the Macro doc strings about the behavior of macros with hangups (et al.), as per 9337

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@59186 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_macro.c

@@ -61,6 +61,11 @@ static char *descrip =
 "will be returned at the location of the Goto.\n"
 "If ${MACRO_OFFSET} is set at termination, Macro will attempt to continue\n"
 "at priority MACRO_OFFSET + N + 1 if such a step exists, and N + 1 otherwise.\n"
+"Extensions: While a macro is being executed, it becomes the current context.\n"
+"            This means that if a hangup occurs, for instance, that the macro\n"
+"            will be searched for an "h" extension, NOT the context from which\n"
+"            the macro was called. So, make sure to define all appropriate\n"
+"            extensions in your macro! (you can use 'catch' in AEL) \n"
 "WARNING: Because of the way Macro is implemented (it executes the priorities\n"
 "         contained within it via sub-engine), and a fixed per-thread\n"
 "         memory stack allowance, macros are limited to 7 levels\n"