Remove $PLAN9/bin from the path when spawning wmiirc from rc.wmii.
Remove $PLAN9/bin from the path when spawning wmiirc from rc.wmii.

Sirikid/wmii,wingyplus/wmii,Sirikid/wmii,rvedam/wmii,Sirikid/wmii,darkfeline/wmii,rvedam/wmii,rvedam/wmii,rvedam/wmii,Sirikid/wmii,rvedam/wmii,darkfeline/wmii,wingyplus/wmii,Sirikid/wmii,sigmavirus24/wmii,wingyplus/wmii,jerluc/wmii,darkfeline/wmii,sigmavirus24/wmii,jerluc/wmii,sigmavirus24/wmii,sigmavirus24/wmii,darkfeline/wmii,wingyplus/wmii,jerluc/wmii,darkfeline/wmii,jerluc/wmii,jerluc/wmii,wingyplus/wmii,sigmavirus24/wmii