python: trim all whitespaces for the operator in the filespec

That would allow for files (in filespecs) to be indented.
As it is now, the files need to be added at the begginning of the line.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

lang/python/files/python-package.mk

@@ -45,6 +45,7 @@ define PyPackage
 	@echo "$$$$$$$$$$(call shvar,PyPackage/$(1)/filespec)" | ( \
 		IFS='|'; \
 		while read fop fspec fperm; do \
+		  fop=`echo "$$$$$$$$fop" | tr -d ' \t\n'`; \
 		  if [ "$$$$$$$$fop" = "+" ]; then \
 			if [ ! -e "$(PKG_INSTALL_DIR)$$$$$$$$fspec" ]; then \
 			  echo "File not found '$(PKG_INSTALL_DIR)$$$$$$$$fspec'"; \