paths: Add support for -q/--quiet
Suppresses output (resolved paths or "not found!") when searching a path,
similar to "grep -q".
Sample usage: hg paths -q foo || echo "there is no foo"
Just prints path names (instead of "name = result") when listing all path
definitions, like "hg bookmarks -q".
Sample usage: hg paths -q | while read i; do hg incoming "$i"; done
$ hg init
$ echo a > a
$ hg ci -Am t
adding a
$ hg mv a b
$ hg ci -Am t1
$ hg debugrename b
b renamed from a:b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3
$ hg mv b a
$ hg ci -Am t2
$ hg debugrename a
a renamed from b:37d9b5d994eab34eda9c16b195ace52c7b129980
$ hg debugrename --rev 1 b
b renamed from a:b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3