Fix typo stdrup with strdup.

This typo was in code section conditional on Sun
and the Sun nightly builds broke making this easy
to track down.



[SVN r64203]

tools/build

@@ -1 +1 @@
-Subproject commit 284a2f0608f4e5ad71cd0b7c110bddde3fcde864
+Subproject commit 62e4971d9aba9978c6996dce91823ca8c6f03bcb