skip sed run for ps output filtering as ps itself can omit the headers

--
Signed-off-by: Elan Ruusamäe <glen@delfi.ee>

--- bash-completion/bash_completion~	2009-05-24 01:07:50.000000000 +0300
+++ bash-completion/bash_completion	2009-05-24 01:12:42.638288264 +0300
@@ -447,7 +447,7 @@
 } ||
 _pids()
 {
-	COMPREPLY=( $( compgen -W '$( command ps axo pid | sed 1d )' -- $cur ) )
+	COMPREPLY=( $( compgen -W '$( command ps axo pid= )' -- $cur ) )
 }
 
 # This function completes on process group IDs.
@@ -459,7 +459,7 @@
 } ||
 _pgids()
 {
-	COMPREPLY=( $( compgen -W '$( command ps axo pgid | sed 1d )' -- $cur ))
+	COMPREPLY=( $( compgen -W '$( command ps axo pgid= )' -- $cur ))
 }
 
 # This function completes on process names.
@@ -482,8 +482,8 @@
 	# for now.
 	# Not using "ps axo comm" because under some Linux kernels, it
 	# truncates command names (see e.g. http://bugs.debian.org/497540#19)
-	COMPREPLY=( $( compgen -W '$( command ps axo command | \
-			           sed -e "1d; s/ .*//; s:.*/::; s/:$//;" \
+	COMPREPLY=( $( compgen -W '$( command ps axo command= | \
+			           sed -e "s/ .*//; s:.*/::; s/:$//;" \
 			               -e "s/^[[(-]//; s/[])]$//" \
 				       -e "s/^<defunct>$//")' \
 			           -- $cur ) )