Reduce stack requirements for GetPathComponent.
Reduce stack requirements for GetPathComponent.

UniQP/ImageMagick,kwm81/ImageMagick,Danack/ImageMagick,UniQP/ImageMagick,Danack/ImageMagick,UniQP/ImageMagick,UniQP/ImageMagick,Danack/ImageMagick,Danack/ImageMagick,Danack/ImageMagick,UniQP/ImageMagick,kwm81/ImageMagick,Danack/ImageMagick,UniQP/ImageMagick,kwm81/ImageMagick,kwm81/ImageMagick,kwm81/ImageMagick,kwm81/ImageMagick