gnulib: update to latest.

lib/.cvsignore

@@ -3,6 +3,7 @@ Makefile
 Makefile.in
 argmatch.c
 argmatch.h
+basename-lgpl.c
 basename.c
 bitrotate.h
 c-ctype.c
@@ -15,16 +16,21 @@ config.charset
 config.h
 config.hin
 configmake.h
+dirname-lgpl.c
 dirname.c
 dirname.h
 dup-safer.c
+dup2.c
 errno.in.h
 error.c
 error.h
 exitfail.c
 exitfail.h
+fcntl.c
+fcntl.in.h
 fd-safer.c
 fopen-safer.c
+fopen.c
 getopt.c
 getopt.h
 getopt.in.h
@@ -70,6 +76,8 @@ stdint.in.h
 stdint_.h
 stdio--.h
 stdio-safer.h
+stdio-write.c
+stdio.in.h
 stdlib.h
 stdlib.in.h
 stdlib_.h