Bug 1078415 - Log parser: Return early in parse_line() to simplify flow
Bug 1078415 - Log parser: Return early in parse_line() to simplify flow

If we're waiting for a step start line, we can just return early,
regardless of whether we found one or not, which means the later
check for |self.state == self.ST_STARTED| is now redundant. The previous
flow and comments were making the self.sub_parser.parse_line() call
look like it only occurred on the end step, when in fact it occurs only
when it's not the start _or_ end step.

moijes12/treeherder,avih/treeherder,parkouss/treeherder,wlach/treeherder,jgraham/treeherder,adusca/treeherder,deathping1994/treeherder,gbrmachado/treeherder,glenn124f/treeherder,vaishalitekale/treeherder,jgraham/treeherder,jgraham/treeherder,sylvestre/treeherder,jgraham/treeherder,tojon/treeherder,gbrmachado/treeherder,kapy2010/treeherder,akhileshpillai/treeherder,vaishalitekale/treeherder,tojonmz/treeherder,avih/treeherder,tojon/treeherder,rail/treeherder,deathping1994/treeherder,deathping1994/treeherder,gbrmachado/treeherder,avih/treeherder,tojon/treeherder,edmorley/treeherder,tojon/treeherder,avih/treeherder,KWierso/treeherder,kapy2010/treeherder,jgraham/treeherder,KWierso/treeherder,avih/treeherder,parkouss/treeherder,adusca/treeherder,tojonmz/treeherder,wlach/treeherder,KWierso/treeherder,adusca/treeherder,glenn124f/treeherder,parkouss/treeherder,avih/treeherder,moijes12/treeherder,edmorley/treeherder,parkouss/treeherder,glenn124f/treeherder,glenn124f/treeherder,rail/treeherder,edmorley/treeherder,moijes12/treeherder,moijes12/treeherder,akhileshpillai/treeherder,tojonmz/treeherder,kapy2010/treeherder,akhileshpillai/treeherder,rail/treeherder,sylvestre/treeherder,moijes12/treeherder,deathping1994/treeherder,rail/treeherder,vaishalitekale/treeherder,wlach/treeherder,kapy2010/treeherder,edmorley/treeherder,gbrmachado/treeherder,rail/treeherder,wlach/treeherder,jgraham/treeherder,vaishalitekale/treeherder,tojonmz/treeherder,adusca/treeherder,rail/treeherder,adusca/treeherder,gbrmachado/treeherder,wlach/treeherder,glenn124f/treeherder,KWierso/treeherder,glenn124f/treeherder,akhileshpillai/treeherder,deathping1994/treeherder,akhileshpillai/treeherder,sylvestre/treeherder,sylvestre/treeherder,tojonmz/treeherder,wlach/treeherder,vaishalitekale/treeherder,vaishalitekale/treeherder,moijes12/treeherder,akhileshpillai/treeherder,parkouss/treeherder,adusca/treeherder,tojonmz/treeherder,gbrmachado/treeherder,deathping1994/treeherder,kapy2010/treeherder,sylvestre/treeherder,sylvestre/treeherder,parkouss/treeherder