provide curDir to mvn call in graalpy.sh

(cherry picked from commit 9b62a7a)

Author: tomasstupka

graalpython/lib-graalpython/modules/standalone/app/graalpy.sh

@@ -22,6 +22,7 @@ for var in "$@"; do
     args="${args}$(printf "\v")${var}"
 done
 
+curdir=`pwd`
 export GRAAL_PYTHON_ARGS=$args
-echo graalpy.sh is going to execute: mvn -f "${location}/pom.xml" exec:exec -Dexec.executable=$JAVA -Dexec.args="--module-path %classpath '-Dorg.graalvm.launcher.executablename=$0' --module org.graalvm.py.launcher/com.oracle.graal.python.shell.GraalPythonMain"
-mvn -f "${location}/pom.xml" exec:exec -Dexec.executable="${JAVA}" -Dexec.args="--module-path %classpath '-Dorg.graalvm.launcher.executablename=$0' --module org.graalvm.py.launcher/com.oracle.graal.python.shell.GraalPythonMain"
+echo graalpy.sh is going to execute: mvn -f "${location}/pom.xml" exec:exec -Dexec.executable=$JAVA -Dexec.workingdir="${curdir}" -Dexec.args="--module-path %classpath '-Dorg.graalvm.launcher.executablename=$0' --module org.graalvm.py.launcher/com.oracle.graal.python.shell.GraalPythonMain"
+mvn -f "${location}/pom.xml" exec:exec -Dexec.executable="${JAVA}" -Dexec.workingdir="${curdir}" -Dexec.args="--module-path %classpath '-Dorg.graalvm.launcher.executablename=$0' --module org.graalvm.py.launcher/com.oracle.graal.python.shell.GraalPythonMain"