Update ignored files for the latest version of Gnulib

.gitignore

@@ -15,21 +15,6 @@ TAGS
 /configure
 /stamp-h1
 
-/build-aux/ar-lib
-/build-aux/compile
-/build-aux/config.guess
-/build-aux/config.rpath
-/build-aux/config.sub
-/build-aux/depcomp
-/build-aux/install-sh
-/build-aux/missing
-
-/build-aux/snippet/_Noreturn.h
-/build-aux/snippet/arg-nonnull.h
-/build-aux/snippet/c++defs.h
-/build-aux/snippet/unused-parameter.h
-/build-aux/snippet/warn-on-use.h
-
 /data/trader.desktop
 
 /po/POTFILES

build-aux/.gitignore

@@ -0,0 +1,15 @@
+/ar-lib
+/compile
+/config.guess
+/config.rpath
+/config.sub
+/depcomp
+/install-sh
+/missing
+
+/snippet/
+/snippet/_Noreturn.h
+/snippet/arg-nonnull.h
+/snippet/c++defs.h
+/snippet/unused-parameter.h
+/snippet/warn-on-use.h

lib/.gitignore

@@ -26,6 +26,7 @@ Makefile.am
 /iconv_open-osf.gperf
 /iconv_open-solaris.gperf
 /iconv_open.c
+/limits.in.h
 /localcharset.c
 /localcharset.h
 /locale.in.h
@@ -103,6 +104,7 @@ Makefile.am
 
 /sys/
 
+/unistr/
 /unistr/.dirstamp
 /unistr/u8-mbtoucr.c
 /unistr/u8-uctomb-aux.c

m4/.gitignore

@@ -34,6 +34,7 @@
 /lib-link.m4
 /lib-prefix.m4
 /libunistring-base.m4
+/limits-h.m4
 /localcharset.m4
 /locale-fr.m4
 /locale-ja.m4