contrib/initrd hooks: properly quote @LIBFETCH_SONAME@

Bullseye shellcheck picks these up as SC2140, and it's right!
@LIBFETCH_SONAME@ is already quoted, so dracut had
  "$d/"libcurl.so.4""
and i-t had
  ""libcurl.so.4""

Partially reverts 34eef3e (#12760),
which broke this

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>

contrib/dracut/90zfs/module-setup.sh.in

@@ -61,9 +61,9 @@ install() {
 		dracut_install /usr/lib*/gcc/**/libgcc_s.so*
 	fi
 	# shellcheck disable=SC2050
-	if [ "@LIBFETCH_DYNAMIC@" != 0 ]; then
+	if [ @LIBFETCH_DYNAMIC@ != 0 ]; then
 		for d in $libdirs; do
-			[ -e "$d/@LIBFETCH_SONAME@" ] && dracut_install "$d/@LIBFETCH_SONAME@"
+			[ -e "$d/"@LIBFETCH_SONAME@ ] && dracut_install "$d/"@LIBFETCH_SONAME@
 		done
 	fi
 	dracut_install @mounthelperdir@/mount.zfs

contrib/initramfs/hooks/zfs.in

@@ -30,8 +30,8 @@ find /lib/ -type f -name "libgcc_s.so.[1-9]" | while read -r libgcc; do
 done
 
 # shellcheck disable=SC2050
-if [ "@LIBFETCH_DYNAMIC@" != 0 ]; then
-	find /lib/ -name "@LIBFETCH_SONAME@" | while read -r libfetch; do
+if [ @LIBFETCH_DYNAMIC@ != 0 ]; then
+	find /lib/ -name @LIBFETCH_SONAME@ | while read -r libfetch; do
 		copy_exec "$libfetch"
 	done
 fi