Fix recent changes in gnutls.c

* src/gnutls.c: Fix typos that broke the MS-Windows build.
(Fgnutls_peer_status_warning_describe): Fix incomplete error
message string.
1 job for master in 63 minutes and 52 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Test
passed #3095
test-all

01:03:52