tests/test-ui-color.py.out

dagop: bulk rename variables in revancestors() generator

 - h -> pendingheap: "h" seems too short for variable of long lifetime
 - current -> currev: future patches will add current "depth" variable
 - parent -> prev or pctx: short lifetime, follows common naming rules

warning
error
'buffered\n'
colored? True
colored? True