Dear Maintainer,

Please consider this short patch that
replaces open code debian/postrm
with a machine-parsable debian/purge.

Moreunder I also posted the new generated .postrm script.
"It just works"

Greetings

Alexandre
--- a/debian/control
+++ b/debian/control
@@ -2,7 +2,7 @@ Source: phalanx
 Section: games
 Priority: optional
 Maintainer: Jose G. López <josgalo@jglopez.name>
-Build-Depends: debhelper-compat (= 13)
+Build-Depends: debhelper-compat (= 13), dh-sequence-cruft
 Rules-Requires-Root: binary-targets
 Standards-Version: 4.6.1
 Homepage: https://sourceforge.net/projects/phalanx
--- a/debian/postrm
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/sh
-
-set -e
-
-if test "$1" = purge; then
-  rm -f /var/games/phalanx.learn
-fi
-
-#DEBHELPER#
--- /dev/null
+++ b/debian/purge
@@ -0,0 +1 @@
+/var/games/phalanx.learn





$ cat debian/phalanx/DEBIAN/postrm
#!/bin/sh
set -e
# Automatically added by dh_cruft/0.9.80
if [ "$1" = "purge" ]
then
    # we need to glob, so no quotes
    rm -rf ${DPKG_ROOT:-}/var/games/phalanx.learn
    if test -d ${DPKG_ROOT:-}/var/games/
    then
        rmdir --ignore-fail-on-non-empty ${DPKG_ROOT:-}/var/games/
    fi
fi
# End automatically added section
# Automatically added by dh_installdebconf/13.31
if [ "$1" = purge ] && [ -e /usr/share/debconf/confmodule ]; then
        . /usr/share/debconf/confmodule
        db_purge
fi
# End automatically added section