1.2dev: increase clone depth on AppVeyor
1.2dev: increase clone depth on AppVeyor

Merged r14496 from 1.0-stable.

[skip ci]


git-svn-id: eda3d06fcef731589ace1b284159cead3416df9b@14499 af82e41b-90c4-0310-8c96-b1721e28e2e2

walty8/trac,walty8/trac,walty8/trac,walty8/trac