fix python indent mistake and input file block finding logic
fix python indent mistake and input file block finding logic

jessecarterMOOSE/moose,laagesen/moose,SudiptaBiswas/moose,laagesen/moose,milljm/moose,bwspenc/moose,harterj/moose,bwspenc/moose,harterj/moose,SudiptaBiswas/moose,idaholab/moose,sapitts/moose,sapitts/moose,bwspenc/moose,dschwen/moose,milljm/moose,harterj/moose,jessecarterMOOSE/moose,dschwen/moose,SudiptaBiswas/moose,harterj/moose,harterj/moose,lindsayad/moose,milljm/moose,milljm/moose,lindsayad/moose,dschwen/moose,idaholab/moose,nuclear-wizard/moose,SudiptaBiswas/moose,idaholab/moose,andrsd/moose,dschwen/moose,laagesen/moose,lindsayad/moose,milljm/moose,bwspenc/moose,jessecarterMOOSE/moose,bwspenc/moose,jessecarterMOOSE/moose,idaholab/moose,dschwen/moose,nuclear-wizard/moose,andrsd/moose,laagesen/moose,idaholab/moose,andrsd/moose,lindsayad/moose,jessecarterMOOSE/moose,andrsd/moose,nuclear-wizard/moose,sapitts/moose,sapitts/moose,lindsayad/moose,andrsd/moose,laagesen/moose,SudiptaBiswas/moose,sapitts/moose,nuclear-wizard/moose