Handle filepath spaces in sysroot_path.sh
Handle filepath spaces in sysroot_path.sh

Started seeing a bunch of errors when building Ritz that looked like:

j2objc/scripts/sysroot_path.sh: line 41: [: /Applications/Xcode: binary operator expected

Traced it back to the output of xcode-select --print-path being:

/Applications/Xcode 2.app/Contents/Developer
	Change on 2013/10/28 by pdonelan <pdonelan@google.com>
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=55717289

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