Commit Briefs
make 'got commit' look up EDITOR in PATH
The previous code only worked if EDITOR contained an absolute path.
tog: don't clear diff view contents when indicating diff progress
this is much easier on the eyes when moving through diffs
implement spawning an editor to collect a commit message
bails on empty messages, trims leading and trailing newlines this currently disables the unveil in the commit process because it's not compatible with spawning the editor also prevent commits when there are no changes
be less clever: don't nest 'case' inside if (...)
no functional change