Fix typo preventing cafrun --help from working

zbeekman · zbeekman · commit 878e5b488cee · 2016-12-21T15:07:47.000-05:00
diff --git a/src/extensions/cafrun-foot b/src/extensions/cafrun-foot
@@ -1,4 +1,4 @@
-Usage()
+usage()
 {
     cmd=$(basename "$0")
     echo ""
