Simplify regex for bug fix of #172
Simplify regex for bug fix of #172

codevlabs/octotree,jamez14/octotree,zhutaorun/octotree,codevlabs/octotree,FroggyStyle/octotree,duylam/octotree,treejames/octotree,mdibaiee/octotree,SampleLiao/octotree,mikestaub/octotree,christer155/octotree,crashbell/octotree,zhutaorun/octotree,jamez14/octotree,guidiego/octotree,kidaa/octotree,nntoan/octotree,buunguyen/octotree,nntoan/octotree,Brightcells/octotree,likaiwalkman/octotree,christer155/octotree,shiningguang/octotree,FroggyStyle/octotree,JimiHFord/octotree,mikestaub/octotree,JimiHFord/octotree,Ephemera/octotree,Brightcells/octotree,Havi4/octotree,SampleLiao/octotree,shiningguang/octotree,guidiego/octotree,likaiwalkman/octotree,ldnguyen58/octotree,crashbell/octotree,duylam/octotree,Havi4/octotree,Ephemera/octotree,mdibaiee/octotree,buunguyen/octotree,kidaa/octotree,treejames/octotree,ldnguyen58/octotree