CI: Fix regex for evergreen OS X versions
diff --git a/circle.yml b/circle.yml
index b921b7a..89c56a4 100644
--- a/circle.yml
+++ b/circle.yml
@@ -213,7 +213,7 @@
for file in $(ls *.png); do
# if evergreen browser, browser version of previous screenshot may not match,
# so replace previous browser version with glob
- baseline="$(echo baseline/$(echo $file | sed 's/[^_]*_(evergreen)/*/; s/OS_X_[^.]*/OS_X_*/' | tee /dev/stderr) | tee /dev/stderr)"
+ baseline="$(echo baseline/$(echo $file | sed 's/[^_]*_(evergreen)/*/; s/OS_X_.*/OS_X_*.png/' | tee /dev/stderr) | tee /dev/stderr)"
echo "Number of different pixels from baseline in $file:"
compare -metric AE $baseline $file ${file/%.png/_DIFF.png}
done
