non-GNU sed needs an extra newline character

https://bz.apache.org/bugzilla/show_bug.cgi?id=59898

WHATSNEW

@@ -32,6 +32,10 @@ Fixed bugs:
    been introduced with Java 7.
    Bugzilla Report 59556
 
+ * The ant wrapper script used on Unix-like operating systems only
+   worked on OSes where sed is GNU sed.
+   Bugzilla Report 59898
+
 Other changes:
 --------------
 

src/script/ant

@@ -36,7 +36,7 @@ for arg in "$@" ; do
       show_help=true
     fi
     # wrap all arguments as "" strings, escape any internal back-slash or double-quote characters
-    ant_exec_args="$ant_exec_args \"$(printf '%s' "$arg" | sed -e 's@"\|\\@\\\0@g' )\""
+    ant_exec_args="$ant_exec_args \"$(printf '%s\n' "$arg" | sed -e 's@"\|\\@\\\0@g' )\""
   fi
 done