fix #3534: NullPointerException in getInternalStorageBase
fix #3534: NullPointerException in getInternalStorageBase

superspindel/cgeo,matej116/cgeo,rsudev/c-geo-opensource,lewurm/cgeo,matej116/cgeo,Bananeweizen/cgeo,samueltardieu/cgeo,Huertix/cgeo,auricgoldfinger/cgeo,schwabe/cgeo,KublaikhanGeek/cgeo,SammysHP/cgeo,marco-dev/c-geo-opensource,tobiasge/cgeo,brok85/cgeo,rsudev/c-geo-opensource,madankb/cgeo,mucek4/cgeo,xiaoyanit/cgeo,Huertix/cgeo,xiaoyanit/cgeo,superspindel/cgeo,Bananeweizen/cgeo,madankb/cgeo,schwabe/cgeo,schwabe/cgeo,yummy222/cgeo,cgeo/cgeo,brok85/cgeo,marco-dev/c-geo-opensource,KublaikhanGeek/cgeo,lewurm/cgeo,xiaoyanit/cgeo,vishwakulkarni/cgeo,S-Bartfast/cgeo,SammysHP/cgeo,yummy222/cgeo,tobiasge/cgeo,pstorch/cgeo,brok85/cgeo,kumy/cgeo,kumy/cgeo,samueltardieu/cgeo,cgeo/cgeo,vishwakulkarni/cgeo,ThibaultR/cgeo,kumy/cgeo,pstorch/cgeo,marco-dev/c-geo-opensource,Bananeweizen/cgeo,tobiasge/cgeo,ThibaultR/cgeo,pstorch/cgeo,auricgoldfinger/cgeo,S-Bartfast/cgeo,samueltardieu/cgeo,SammysHP/cgeo,ThibaultR/cgeo,mucek4/cgeo,madankb/cgeo,vishwakulkarni/cgeo,superspindel/cgeo,mucek4/cgeo,S-Bartfast/cgeo,lewurm/cgeo,KublaikhanGeek/cgeo,matej116/cgeo,cgeo/cgeo,auricgoldfinger/cgeo,Huertix/cgeo,cgeo/cgeo,rsudev/c-geo-opensource,yummy222/cgeo,schwabe/cgeo