bugfix with background processes not returning self
bugfix with background processes not returning self

amoffat/sh,amoffat/sh,pombredanne/sh,hacosta/python-sh,rsmith31415/sh,pdelong42/sh,lwgarmstrong/sh,twocngdagz/sh,hacosta/python-sh,germangh/sh,ppannuto/sh,rdhyee/sh,z-fork/sh,achernet/sh,jakirkham/sh,simudream/sh,Stupeflix/sh