Config parser does not recognize assignments without whitespace

[stocc]

In my project, I have several xcconfig files that have assignments without spaces separating the equal sign like
PRODUCT_NAME=$(CUSTOMER_PRODUCT_NAME)
Xcode parses these just fine but the regex used here appears to enforce whitespace

Xcodeproj/lib/xcodeproj/config.rb

Line 24 in aac57c4

\s+ # Whitespaces after the key (needed because subscripts

Simply the +should be replaced by *