Use otool -h to check the filetype of Mach-O files
Use otool -h to check the filetype of Mach-O files

The current logic was not correct for Mach-O Universal files.

frol/conda-build,rmcgibbo/conda-build,shastings517/conda-build,mwcraig/conda-build,rmcgibbo/conda-build,dan-blanchard/conda-build,ilastik/conda-build,frol/conda-build,shastings517/conda-build,dan-blanchard/conda-build,mwcraig/conda-build,sandhujasmine/conda-build,rmcgibbo/conda-build,dan-blanchard/conda-build,sandhujasmine/conda-build,ilastik/conda-build,frol/conda-build,ilastik/conda-build,mwcraig/conda-build,sandhujasmine/conda-build,shastings517/conda-build