* gpgmeplug.c (xmalloc): New.

* gpgmeplug.c (xmalloc): New.
(safe_malloc): Removed this macro and replaced it at all places
without return values checks by xmalloc.
(xstrdup): New. Replaces funny named macro with different
semantics.  Changed all callers to the new semantic.
(findCertificates): Don't free duplicate free the FPR array
values.  Removed the unneeded initialization.  Replaces the
gcc-ish use dynamic allocation of automatic variables by repalce
maxCerts with a macro MAXCERTS.  Made some comments Real C (tm).
(startListCertificates): Removed uneeded cast from xmalloc.