tools/release: run autoconf/clean.sh if it exists

If autoconf/clean.sh exists, run it after "make distclean" as a
redundancy measure.

Signed-off-by: H. Peter Anvin <[email protected]>

Author: H. Peter Anvin

tools/release

@@ -48,6 +48,9 @@ cd nasm
 $makej perlreq spec manpages
 $makej alldeps
 $makej distclean
+if [ -f ./autoconf/clean.sh ]; then
+    sh ./autoconf/clean.sh
+fi
 cd ..
 
 # Clean up any previous attempt