pkgtest: remove quotes for 'FASTR_INTERNAL_ARGS'.

(cherry picked from commit acb2374)

Author: fangerer

com.oracle.truffle.r.release/src/R_legacy

@@ -116,9 +116,9 @@ cp="$JAVA_HOME/jre/languages/R/fastr-launcher.jar:$cp"
 ## REMOVE FOR NATIVE IMAGE: END
 # internal variable used to pass args to child R processes
 if [ -z "$FASTR_INTERNAL_ARGS" ]; then
-    FASTR_INTERNAL_ARGS=()
+    FASTR_INTERNAL_ARGS=""
 fi
 
 # we can invoke FastR directly, but we do have to set R_HOME
 export R_HOME="$JRE/languages/R"
-exec "$JAVA_HOME/bin/java" -cp "$cp" -noverify -Dgraal.TruffleCompilationThreshold=10000 -Dgraal.TruffleCompilerThreads=2 -Xmx8g "${jvm_args[@]}" com.oracle.truffle.r.launcher.RMain R "${FASTR_INTERNAL_ARGS[@]}" "${launcher_args[@]}"
+exec "$JAVA_HOME/bin/java" -cp "$cp" -noverify -Dgraal.TruffleCompilationThreshold=10000 -Dgraal.TruffleCompilerThreads=2 -Xmx8g "${jvm_args[@]}" com.oracle.truffle.r.launcher.RMain R ${FASTR_INTERNAL_ARGS[@]} "${launcher_args[@]}"

com.oracle.truffle.r.release/src/Rscript_legacy

@@ -116,9 +116,9 @@ cp="$JAVA_HOME/jre/languages/R/fastr-launcher.jar:$cp"
 ## REMOVE FOR NATIVE IMAGE: END
 # internal variable used to pass args to child R processes
 if [ -z "$FASTR_INTERNAL_ARGS" ]; then
-    FASTR_INTERNAL_ARGS=()
+    FASTR_INTERNAL_ARGS=""
 fi
 
 # we can invoke FastR directly, but we do have to set R_HOME
 export R_HOME="$JRE/languages/R"
-exec "$JAVA_HOME/bin/java" -cp "$cp" -noverify -Dgraal.TruffleCompilationThreshold=10000 -Dgraal.TruffleCompilerThreads=2 -Xmx4g "${jvm_args[@]}" com.oracle.truffle.r.launcher.RMain Rscript "${FASTR_INTERNAL_ARGS[@]}" "${launcher_args[@]}"
+exec "$JAVA_HOME/bin/java" -cp "$cp" -noverify -Dgraal.TruffleCompilationThreshold=10000 -Dgraal.TruffleCompilerThreads=2 -Xmx4g "${jvm_args[@]}" com.oracle.truffle.r.launcher.RMain Rscript ${FASTR_INTERNAL_ARGS[@]} "${launcher_args[@]}"