patch bin/functions.d/getopt-settings.sh for eXist v4

to get rid of the error messages
```shell
/opt/exist/bin/functions.d/getopt-settings.sh: line 93: [: ==: unary operator expected
/opt/exist/bin/functions.d/getopt-settings.sh: line 100: [: ==: unary operator expected
```

Author: peterstadler

Dockerfile

@@ -34,7 +34,7 @@ WORKDIR ${EXIST_HOME}
 ADD http://exist-db.org/exist/apps/public-repo/public/functx-1.0.1.xar ${EXIST_HOME}/autodeploy/ 
 
 # adding the entrypoint script and XML catalog
-COPY entrypoint.sh catalog.xml ${EXIST_HOME}/
+COPY entrypoint.sh catalog.xml getopt-settings.eXist4.patch ${EXIST_HOME}/
 COPY configure_9_3.dtd /etc/
 
 # adding some scripts/configuration files for fine tuning
@@ -47,7 +47,7 @@ COPY xml-resolver-1.2.jar ${EXIST_HOME}/lib/
 # main installation put into one RUN to squeeze image size
 RUN apt-get update \
     && apt-get dist-upgrade -y \
-    && apt-get install -y --no-install-recommends curl pwgen zip \
+    && apt-get install -y --no-install-recommends curl pwgen zip patch \
     && echo "INSTALL_PATH=${EXIST_HOME}" > "/tmp/options.txt" \
     && echo "MAX_MEMORY=${MAX_MEMORY}" >> "/tmp/options.txt" \
     && echo "dataDir=${EXIST_DATA_DIR}" >> "/tmp/options.txt" \

entrypoint.sh

@@ -43,6 +43,9 @@ ${SAXON} -s:${EXIST_HOME}/webapp/WEB-INF/controller-config.xml -o:/tmp/controlle
 ${SAXON} -s:${EXIST_HOME}/webapp/WEB-INF/web.xml -o:/tmp/web.xml
 ${SAXON} -s:${EXIST_HOME}/log4j2.xml -o:/tmp/log4j2.xml
 
+# patch bin/functions.d/getopt-settings.sh
+patch --silent ${EXIST_HOME}/bin/functions.d/getopt-settings.sh ${EXIST_HOME}/getopt-settings.eXist4.patch
+
 # copying modified configuration files from tmp folder to original destination
 mv /tmp/conf.xml ${EXIST_HOME}/conf.xml
 mv /tmp/exist-webapp-context.xml ${EXIST_HOME}/tools/jetty/webapps/exist-webapp-context.xml

getopt-settings.eXist4.patch

@@ -0,0 +1,19 @@
+--- getopt-settings.sh	2024-10-13 17:39:07
++++ getopt-settings.new	2025-01-22 13:43:11
+@@ -90,14 +90,14 @@
+         continue
+ 	    fi
+ 
+-      if [ $OPT == "--forking" ]; then
++      if [[ $OPT == "--forking" ]]; then
+         FORKING=1
+         continue
+       fi
+ 
+       if is_jmx_switch "$OPT"; then
+         found_jmx_opt=1
+-      elif [ $OPT == "--pidfile" ]; then
++      elif [[ $OPT == "--pidfile" ]]; then
+         found_pidfile_opt=1
+       else
+         check_quiet_switch "$OPT";