Inclusionary patterns: -I

The `-I` flag serves as an "undo" for the `-e` pattern. It overrides any
matching exclusions, allowing for temporary
listing/installation/removal.

For example, if you want to try a `.pythonrc` but leave it in your
`EXCLUDES` in rcrc(5), you can do:

    rcup -Ipythonrc pythonrc

1 files changed, 1 insertions, 1 deletions

diff --git a/bin/mkrc b/bin/mkrc
index 5a70482..d3effb8 100755
--- a/bin/mkrc
+++ b/bin/mkrc
@@ -23,7 +23,7 @@ if [ -e $HOME/.rcrc ]; then
 fi
 
 if [ $# -eq 0 ]; then
-  echo "Usage: mkrc [-d dir] [-t tag] [-o] [-v] [-q] filename ..."
+  echo "Usage: mkrc [-vqo] [-t tag] [-d dir] files ..."
   exit 1
 fi