varmod-head.exp revision 1.2 
1head (dirname) of 'a/b/c' is 'a/b'
2head (dirname) of 'def' is '.'
3head (dirname) of 'a.b.c' is '.'
4head (dirname) of 'a.b/c' is 'a.b'
5head (dirname) of 'a' is '.'
6head (dirname) of 'a.a' is '.'
7head (dirname) of '.gitignore' is '.'
8head (dirname) of 'a' is '.'
9head (dirname) of 'a.a' is '.'
10exit status 0
11