treat all whitespace as a delimiter in GYP_DEFINES

gyp itself treats any whitespace as a delimiter in GYP_DEFINES, this script should behave the same.

NOTRY=true

Review URL: https://codereview.chromium.org/290173005

Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 4ab91bd7ff747ff311456bb377f14d1ec8c5b0dd
1 file changed