Small clenaup patches:

Small clenaup patches:
 - safe_string.h - don't assume that __FUNCTION__ is available
 - process.c - use new workaround from safe_string.h for the same
 - util.c - Show how many bytes we smb_panic()ed trying to smb_xmalloc()
 - gencache.c - Keep valgrind quiet by always null terminating.
 - clistr.c - Add copyright
 - srvstr.h - move srvstr_push into a .c file again, as a real function.
 - srvstr.c - revive, with 'safe' checked srvstr_push
 - loadparm.c - set a default for the display charset.

Andrew Bartlett
(This used to be commit a7eba37aadeb0b04cb1bd89deddb58be8aba825c)