main/linux-grsec: fix localversion

it picked up the aports git repo by mistake

main/linux-grsec/APKBUILD

@@ -4,7 +4,7 @@ _flavor=grsec
 pkgname=linux-${_flavor}
 pkgver=2.6.35.7
 _kernver=2.6.35
-pkgrel=1
+pkgrel=2
 pkgdesc="Linux kernel with grsecurity"
 url=http://grsecurity.net
 depends="mkinitfs linux-firmware"
@@ -18,6 +18,7 @@ source="ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-$_kernver.tar.bz2
 	0004-arp-flush-arp-cache-on-device-change.patch
 	r8169-fix-rx-checksum-offload.patch
 	r8169-add-gro-support.patch
+	setlocalversion.patch
 	kernelconfig.x86
 	"
 subpackages="$pkgname-dev linux-firmware:firmware"
@@ -143,4 +144,5 @@ md5sums="091abeb4684ce03d1d936851618687b6  linux-2.6.35.tar.bz2
 776adeeb5272093574f8836c5037dd7d  0004-arp-flush-arp-cache-on-device-change.patch
 0ccecafd4123dcad0b0cd7787553d734  r8169-fix-rx-checksum-offload.patch
 139b39da44ecb577275be53d7d365949  r8169-add-gro-support.patch
+8c224ba0cdf0aa572c7eb50379435be4  setlocalversion.patch
 f6b46f11945c77d01679c87e95d512ee  kernelconfig.x86"

main/linux-grsec/setlocalversion.patch

+--- ./scripts/setlocalversion.orig
++++ ./scripts/setlocalversion
+@@ -43,7 +43,7 @@
+ 	fi
+ 
+ 	# Check for git and a git repo.
+-	if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
++	if [ -d "$srctree"/.git ] && 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.