The qmake parser of pro2cmake handles completely commented lines to make
assignments like this work:
SUBDIRS = \
foo \
# bar \
bar
However, assignments like
SUBDIRS = \
foo \
#bar \
bar
were cut off at the commented line.
Fix this by allowing leading whitespace for "fully commented lines".
Change-Id: Ib5de850a02fd9b9ebb7c056c2f64f9d684334b08
Reviewed-by: Lars Knoll <lars.knoll@qt.io>