libjava: fix locale handling when sorting JNI methods

When building under LANG=cs_CZ.UTF-8, the JNI method check fails:

/bin/bash ../../scripts/check_jni_methods.sh
Found a problem with the JNI methods declared and implemented.
(<) missing in implementation, (>) missing in header files
> Java_gnu_java_awt_peer_gtk_GtkClipboard_advertiseContent
> Java_gnu_java_awt_peer_gtk_GtkClipboard_initNativeState
... lots more ...

While the sed commands are run under LC_ALL=C, the two sort commands are
not, and they end up producing unexpected output (for the test).  Once we
run both under LC_ALL=C, the check passes.  While we're here, we can also
combine latter the `sort|uniq` into `sort -u` to match the earlier code.

URL: https://bugs.gentoo.org/563710
Reported-by: Miroslav Šulc <fordfrog@gentoo.org>

From-SVN: r229388

libjava/classpath/ChangeLog

@@ -1,3 +1,8 @@
+2015-10-26  Mike Frysinger  <vapier@gentoo.org>
+
+	* scripts/check_jni_methods.sh.in: Run sort with LC_ALL=C, and
+	combine `sort|uniq` into `sort -u`.
+
 2015-08-11  Uros Bizjak  <ubizjak@gmail.com>
 
 	* configure.ac (tools/gjdoc): Depend on CREATE_WRAPPERS.

libjava/classpath/scripts/check_jni_methods.sh.in

@@ -14,7 +14,7 @@ grep -h '^JNIEXPORT .* Java_' @abs_top_srcdir@/include/*.h | \
         LC_ALL=C sed -e 's,.*JNICALL \(Java_[a-z_A-Z0-9]*\).*$,\1,' > $TMPFILE
 grep -h '^JNIEXPORT .* Java_' @abs_top_builddir@/include/*.h | \
         LC_ALL=C sed -e 's,.*JNICALL \(Java_[a-z_A-Z0-9]*\).*$,\1,' >> $TMPFILE
-sort -u $TMPFILE > $TMPFILE4
+LC_ALL=C sort -u $TMPFILE > $TMPFILE4
 mv $TMPFILE4 $TMPFILE
 
 # Find all methods in the JNI C source files.
@@ -31,7 +31,7 @@ find @abs_top_srcdir@/native/jni -name \*.cpp | \
 	cut -f4 -d\  | \
         LC_ALL=C sed -e 's,^\JNIEXPORT .* JNICALL \(Java_[a-z_A-Z0-9]*\).*$,\1,' >> $TMPFILE2
 mv $TMPFILE2 $TMPFILE3
-sort $TMPFILE3 | uniq > $TMPFILE2
+LC_ALL=C sort -u $TMPFILE3 > $TMPFILE2
 rm $TMPFILE3
 
 # Write temporary ignore file.