1test:
 2	echo $(shell pwd)
 3	echo $(shell false)
 4	echo $(shell  /bin/echo -e "\na \n  b 	\n " )
 5	echo $(shell  /bin/echo -e "\na \n  b 	\n " )X
 6	echo X$(shell  /bin/echo -e "\n\n" )Y
 7	echo X$(shell  /bin/echo -e "a\n\n" )Y
 8	echo X$(shell  /bin/echo -e "\n\nb" )Y
 9	echo X$(shell  /bin/echo -e "\n\nb" )Y
10	echo X$(shell  /bin/echo -e "\n\n\nb" )Y
11	echo X$(shell  /bin/echo -e "   b" )Y
12	echo X$(shell  /bin/echo -e "b   " )Y