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

[Tim Bell]

Hi Erik:

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

Looks good to me.

Tim

> 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)
>  ])