Change error message as suggested by @bwspenc
Change error message as suggested by @bwspenc

Refs #3683.

jinmm1992/moose,wgapl/moose,cpritam/moose,giopastor/moose,jessecarterMOOSE/moose,capitalaslash/moose,roystgnr/moose,andrsd/moose,jiangwen84/moose,nuclear-wizard/moose,raghavaggarwal/moose,permcody/moose,harterj/moose,mellis13/moose,backmari/moose,jessecarterMOOSE/moose,kasra83/moose,andrsd/moose,friedmud/moose,markr622/moose,jhbradley/moose,wgapl/moose,liuwenf/moose,kasra83/moose,jasondhales/moose,jinmm1992/moose,laagesen/moose,lindsayad/moose,idaholab/moose,harterj/moose,milljm/moose,xy515258/moose,liuwenf/moose,bwspenc/moose,yipenggao/moose,jhbradley/moose,markr622/moose,YaqiWang/moose,apc-llc/moose,jessecarterMOOSE/moose,waxmanr/moose,wgapl/moose,katyhuff/moose,milljm/moose,cpritam/moose,joshua-cogliati-inl/moose,Chuban/moose,backmari/moose,milljm/moose,dschwen/moose,joshua-cogliati-inl/moose,backmari/moose,shanestafford/moose,Chuban/moose,yipenggao/moose,mellis13/moose,YaqiWang/moose,stimpsonsg/moose,shanestafford/moose,nuclear-wizard/moose,bwspenc/moose,liuwenf/moose,danielru/moose,stimpsonsg/moose,friedmud/moose,xy515258/moose,waxmanr/moose,Chuban/moose,zzyfisherman/moose,giopastor/moose,apc-llc/moose,friedmud/moose,permcody/moose,roystgnr/moose,jhbradley/moose,roystgnr/moose,waxmanr/moose,danielru/moose,SudiptaBiswas/moose,giopastor/moose,idaholab/moose,raghavaggarwal/moose,sapitts/moose,raghavaggarwal/moose,lindsayad/moose,jasondhales/moose,laagesen/moose,giopastor/moose,wgapl/moose,stimpsonsg/moose,liuwenf/moose,jbair34/moose,lindsayad/moose,jasondhales/moose,jiangwen84/moose,adamLange/moose,jinmm1992/moose,nuclear-wizard/moose,andrsd/moose,bwspenc/moose,joshua-cogliati-inl/moose,kasra83/moose,bwspenc/moose,andrsd/moose,harterj/moose,apc-llc/moose,sapitts/moose,capitalaslash/moose,joshua-cogliati-inl/moose,SudiptaBiswas/moose,dschwen/moose,xy515258/moose,katyhuff/moose,markr622/moose,dschwen/moose,katyhuff/moose,zzyfisherman/moose,sapitts/moose,xy515258/moose,idaholab/moose,idaholab/moose,yipenggao/moose,milljm/moose,jinmm1992/moose,danielru/moose,bwspenc/moose,jessecarterMOOSE/moose,shanestafford/moose,idaholab/moose,dschwen/moose,permcody/moose,roystgnr/moose,shanestafford/moose,YaqiWang/moose,laagesen/moose,milljm/moose,roystgnr/moose,dschwen/moose,jbair34/moose,jbair34/moose,roystgnr/moose,friedmud/moose,mellis13/moose,lindsayad/moose,apc-llc/moose,jhbradley/moose,roystgnr/moose,harterj/moose,jessecarterMOOSE/moose,waxmanr/moose,danielru/moose,shanestafford/moose,liuwenf/moose,zzyfisherman/moose,adamLange/moose,shanestafford/moose,cpritam/moose,zzyfisherman/moose,sapitts/moose,zzyfisherman/moose,kasra83/moose,liuwenf/moose,permcody/moose,yipenggao/moose,nuclear-wizard/moose,Chuban/moose,laagesen/moose,markr622/moose,harterj/moose,adamLange/moose,jbair34/moose,capitalaslash/moose,jiangwen84/moose,backmari/moose,cpritam/moose,raghavaggarwal/moose,SudiptaBiswas/moose,laagesen/moose,SudiptaBiswas/moose,jasondhales/moose,SudiptaBiswas/moose,katyhuff/moose,andrsd/moose,cpritam/moose,zzyfisherman/moose,YaqiWang/moose,stimpsonsg/moose,jiangwen84/moose,sapitts/moose,adamLange/moose,lindsayad/moose,capitalaslash/moose,mellis13/moose,cpritam/moose