hitch: stop breaking masterdir

With grep in checkdepends, xbps-src will remove it on do_clean, which
will remove base_chroot.

srcpkgs/hitch/template

@@ -6,7 +6,7 @@ build_style=gnu-configure
 configure_args="ac_cv_so_reuseport_works=yes ac_cv_so_tfo=yes"
 hostmakedepends="pkg-config automake"
 makedepends="libev-devel libressl-devel"
-checkdepends="lsof curl grep"
+checkdepends="lsof curl"
 short_desc="Libev-based high performance SSL/TLS proxy"
 maintainer="Jannis Christ <hello@jannis.ovh>"
 license="BSD-2-Clause"
@@ -17,6 +17,11 @@ system_accounts="_hitch"
 
 CFLAGS="-fcommon"
 
+post_patch() {
+	vsed -i -e "s/grep -Pq/grep -q/" -e 's/\\t/\t/' \
+		src/tests/test32-proxy-authority.sh
+}
+
 pre_configure() {
 	autoreconf -fi
 }