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Bfn improvements

--- a/rc/bin/Bfn

+++ b/rc/bin/Bfn

@@ -1,9 +1,11 @@

 #!/bin/rc

+rfork e

 if(! ~ $#* 1){

 	echo usage: $0 fn >[2=1]

 	exit usage

 }

-res=`{grep -n '^'$1'\(' *.c | sed -n 's/^([^:]*:[^:]*).*$/\1/gp' }

+if(~ $#srcpath 0) srcpath=.

+res=`{grep -n '^'$1'\(' $srcpath/*.c /dev/null | sed -n 's/^([^:]*:[^:]*).*$/\1/gp' }

 ifs='

 '

 for(i in $res)

-- 

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