pacman: use git apply for patches

so we don't depend on a git commiter being set

pacman/PKGBUILD

@@ -95,11 +95,11 @@ sha256sums=('SKIP'
             'c28e00baa470ba9849c5fa98c646e869bf5b6b3afa183c0cd88826fc26ed9a9a'
             '7aa85f11fb929a0234b228354ae1f6135567d77bfaf424340bd1afc65fadc1b4')
 
-apply_git_am_with_msg() {
+apply_git_with_msg() {
   for _patch in "$@"
   do
     msg2 "Applying $_patch"
-    git am --committer-date-is-author-date "${srcdir}/${_patch}"
+    git apply "${srcdir}/${_patch}"
   done
 }
 
@@ -110,7 +110,7 @@ prepare() {
   git config core.symlinks true
   git reset HEAD --hard
 
- apply_git_am_with_msg 0001-Msysize.patch \
+ apply_git_with_msg 0001-Msysize.patch \
   0002-More-debugging-info.patch \
   0003-Core-update.patch \
   0004-Remove-ldconfig.patch \

pacman/update-patches.sh

@@ -60,7 +60,7 @@ die "Could not stage new patch set"
 in_sources="$(echo "$patches" | sed "{s/^/        /;:1;N;s/\\n/\\\\n        /;b1}")"
 in_prepare="$(echo "$patches" | tr '\n' '\\' | sed -e 's/\\$//' -e 's/\\/ &&&n  /g')"
 sed -i -e "/^        0.*\.patch$/{:1;N;/[^)]$/b1;s|.*|$in_sources)|}" \
-	-e "/^ *apply_git_am_with_msg /{:2;N;/[^}]$/b2;s|.*| apply_git_am_with_msg $in_prepare\\n\\}|}" \
+	-e "/^ *apply_git_with_msg /{:2;N;/[^}]$/b2;s|.*| apply_git_with_msg $in_prepare\\n\\}|}" \
 	PKGBUILD ||
 die "Could not update the patch set in PKGBUILD"