scripts: refetch scripts/setlocalversion from Linux 3.16

Now we have CONFIG_LOCALVERSION and CONFIG_LOCALVERSION_AUTO
in Kconfig so we can use scripts/setlocalversion without
any adjustment.  Copy it from Linux 3.16 as is.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

scripts/setlocalversion

@@ -3,8 +3,10 @@
 # This scripts adds local version information from the version
 # control systems git, mercurial (hg) and subversion (svn).
 #
-# It was originally copied from the Linux kernel v3.2.0-rc4 and modified
-# to support the U-Boot build-system.
+# If something goes wrong, send a mail the kernel build mailinglist
+# (see MAINTAINERS) and CC Nico Schottelius
+# <nico-linuxsetlocalversion -at- schottelius.org>.
+#
 #
 
 usage() {
@@ -41,7 +43,8 @@ scm_version()
 	fi
 
 	# Check for git and a git repo.
-	if test -e .git && head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
+	if test -z "$(git rev-parse --show-cdup 2>/dev/null)" &&
+	   head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
 
 		# If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
 		# it, because this version is defined in the top level Makefile.
@@ -69,12 +72,8 @@ scm_version()
 			printf -- '-svn%s' "`git svn find-rev $head`"
 		fi
 
-		# Update index only on r/w media
-		[ -w . ] && git update-index --refresh --unmerged > /dev/null
-
 		# Check for uncommitted changes
-		if git diff-index --name-only HEAD | grep -v "^scripts/package" \
-		    | read dummy; then
+		if git diff-index --name-only HEAD | grep -qv "^scripts/package"; then
 			printf '%s' -dirty
 		fi
 
@@ -107,7 +106,7 @@ scm_version()
 	fi
 
 	# Check for svn and a svn repo.
-	if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then
+	if rev=`LANG= LC_ALL= LC_MESSAGES=C svn info 2>/dev/null | grep '^Last Changed Rev'`; then
 		rev=`echo $rev | awk '{print $NF}'`
 		printf -- '-svn%s' "$rev"
 
@@ -141,14 +140,12 @@ if $scm_only; then
 	exit
 fi
 
-#if test -e include/config/auto.conf; then
-#	. include/config/auto.conf
-#else
-#	echo "Error: kernelrelease not valid - run 'make prepare' to update it"
-#	exit 1
-#fi
-CONFIG_LOCALVERSION=
-CONFIG_LOCALVERSION_AUTO=y
+if test -e include/config/auto.conf; then
+	. include/config/auto.conf
+else
+	echo "Error: kernelrelease not valid - run 'make prepare' to update it"
+	exit 1
+fi
 
 # localversion* files in the build and source directory
 res="$(collect_files localversion*)"