fix library handling in pkgConfig template
fix library handling in pkgConfig template

jack-oquin/catkin,scpeters/catkin,asmodehn/catkin,jack-oquin/catkin,thaddeustaylor/catkin,harmishhk/catkin,meyerj/catkin,wkentaro/catkin,shyamalschandra/catkin,asmodehn/catkin,scpeters/catkin,meyerj/catkin,harmishhk/catkin,beni55/catkin,ros/catkin,wkentaro/catkin,asmodehn/catkin,beni55/catkin,scpeters/catkin,meyerj/catkin,thaddeustaylor/catkin,jack-oquin/catkin,wkentaro/catkin,beni55/catkin,ros/catkin,shyamalschandra/catkin,thaddeustaylor/catkin,harmishhk/catkin,ros/catkin,shyamalschandra/catkin