euler:rbx-cpp brian$ git up
Fetching new commits: done.
fatal: Needed a single revision
usage: git-merge-base [--all]  
fatal: ambiguous argument '..': both revision and filename
Use '--' to separate filenames from revisions
Up to date.
euler:rbx-cpp brian$ git up --debug
Fetching new commits: /usr/bin/env git --git-dir='/Users/brian/devel/rbx-cpp/.git' fetch 2>&1

done.
/usr/bin/env git --git-dir='/Users/brian/devel/rbx-cpp/.git' rev-parse --verify HEAD
bb67df94ce7375897cc7a335cdfc1c8eb5cc5248
/usr/bin/env git --git-dir='/Users/brian/devel/rbx-cpp/.git' symbolic-ref -q HEAD

/usr/bin/env git --git-dir='/Users/brian/devel/rbx-cpp/.git' config branch..remote

/usr/bin/env git --git-dir='/Users/brian/devel/rbx-cpp/.git' config branch..merge

/usr/bin/env git --git-dir='/Users/brian/devel/rbx-cpp/.git' rev-parse --verify 
fatal: Needed a single revision

/usr/bin/env git --git-dir='/Users/brian/devel/rbx-cpp/.git' merge-base  bb67df94ce7375897cc7a335cdfc1c8eb5cc5248
usage: git-merge-base [--all]  

/usr/bin/env git --git-dir='/Users/brian/devel/rbx-cpp/.git' rev-list ..bb67df94ce7375897cc7a335cdfc1c8eb5cc5248

/usr/bin/env git --git-dir='/Users/brian/devel/rbx-cpp/.git' rev-list ..
fatal: ambiguous argument '..': both revision and filename
Use '--' to separate filenames from revisions

Up to date.