Escape a [

diff --git a/modules/porterbox/files/schroot-dsa/config b/modules/porterbox/files/schroot-dsa/config
index c94c6b3..4e176c6 100644 (file)
--- a/modules/porterbox/files/schroot-dsa/config
+++ b/modules/porterbox/files/schroot-dsa/config
@@ -11,14 +11,14 @@
 if [ "$CHROOT_SESSION_PURGE" = "true" ]; then
     case $CHROOT_DESCRIPTION in
         "["*-*_*-dchroot"]"*)
-            chroot_type="$CHROOT_DESCRIPTION"; chroot_type="${chroot_type#[}"; chroot_type="${chroot_type%%]*}"
+            chroot_type="$CHROOT_DESCRIPTION"; chroot_type="${chroot_type#\[}"; chroot_type="${chroot_type%%]*}"
             suitevariant_arch_tuple="${chroot_type%%-dchroot-*}"
             suitevariant=${suitevariant_arch_tuple%_*}
             SUITE_BASE=${suitevariant%-*}
             SUITE_VARIANT=${suitevariant##*-}
         ;;
         "["*_*-dchroot"]"*)
-            chroot_type="$CHROOT_DESCRIPTION"; chroot_type="${chroot_type#[}"; chroot_type="${chroot_type%%]*}"
+            chroot_type="$CHROOT_DESCRIPTION"; chroot_type="${chroot_type#\[}"; chroot_type="${chroot_type%%]*}"
             SUITE_BASE="${chroot_type%%_*}"
         ;;
         *)