registry cachehook: compare cache_tree against NULL, not 0.
tree92d5b9fa4df2fe2eb1570643927136f9cc8ee1f8
-rw-r--r-- 2055 .gitignore
-rw-r--r-- 35147 COPYING
-rw-r--r-- 1126 MAINTAINERS
-rw-r--r-- 2558 Manifest
-rw-r--r-- 188 PFIF.txt
-rw-r--r-- 8600 README
-rw-r--r-- 6448 README.Coding
-rw-r--r-- 0 Read-Manifest-Now
-rw-r--r-- 1357 Roadmap
-rw-r--r-- 25306 WHATSNEW.txt
drwxr-xr-x - examples
drwxr-xr-x - packaging
drwxr-xr-x - pcp
drwxr-xr-x - release-scripts
drwxr-xr-x - source
drwxr-xr-x - swat
drwxr-xr-x - testsuite