rc: fix globbing with lists (thanks qwx)
rc: fix pwrd() regression, forgot <= ' ' case from needsrcquote()... sorry :(
rc: read heredoc when receiving '\n' (thanks Eckard Brauer)
rc: only have single instance of a symbol, extern in header (thanks mcf)
rc: simplify Makefile, use yacc default rule (thanks k0ga)
initial commit (from 9front 189731aad01e09db1807c78af421c615ed3a3242)