Invalid character ':' in temp file name on other platform

[davido]

On most recent master (c0e4e2f) buck build is failing here with: http://paste.openstack.org/show/185497/

This diff fixed it here:

diff --git a/src/com/facebook/buck/rules/CachingBuildEngine.java b/src/com/facebook/buck/rules/CachingBuildEngine.java
index e87bea7..47f1857
--- a/src/com/facebook/buck/rules/CachingBuildEngine.java
+++ b/src/com/facebook/buck/rules/CachingBuildEngine.java
@@ -424,7 +424,8 @@ public class CachingBuildEngine implements BuildEngine {
     // that we are creating a zip-based FileSystem.
     File zipFile;
     try {
-      zipFile = File.createTempFile(rule.getFullyQualifiedName().replace('/', '_'), ".zip");
+      String tmp = rule.getFullyQualifiedName().replace('/', '_').replace(':', '-');
+      zipFile = File.createTempFile(tmp, ".zip");
     } catch (IOException e) {
       throw new RuntimeException(e);
     }