RFR: JDK-8034098: Configure leaves 'a.out' in root dir.

[Erik Joelsson]

Here is a small patch that stops configure from leaving 'a.out' in the 
root directory.

Bug: https://bugs.openjdk.java.net/browse/JDK-8034098
Patch:
diff -r c99adfb5c4c1 common/autoconf/toolchain.m4
--- a/common/autoconf/toolchain.m4
+++ b/common/autoconf/toolchain.m4
@@ -1205,7 +1205,7 @@
       AC_MSG_RESULT(yes)
       USING_BROKEN_SUSE_LD=yes
     fi
-    rm -rf version-script.map main.c
+    rm -rf version-script.map main.c a.out
   fi
   AC_SUBST(USING_BROKEN_SUSE_LD)
 ])

/Erik