bash: rename __git_find_subcommand() to __git_find_on_cmdline()

__git_find_subcommand() was originally meant to check whether
subcommands are already present on the command line.  But the code is
general enough to be used for checking the presence of command line
options as well, and the next commit will use it for that purpose, so
let's give it a more general name.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Acked-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

contrib/completion/git-completion.bash

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 2d2d579..277af5e 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -620,8 +620,8 @@
 	done
 }
 
-# __git_find_subcommand requires 1 argument
-__git_find_subcommand ()
+# __git_find_on_cmdline requires 1 argument
+__git_find_on_cmdline ()
 {
 	local word subcommand c=1
 
@@ -740,7 +740,7 @@
 	__git_has_doubledash && return
 
 	local subcommands="start bad good skip reset visualize replay log run"
-	local subcommand="$(__git_find_subcommand "$subcommands")"
+	local subcommand="$(__git_find_on_cmdline "$subcommands")"
 	if [ -z "$subcommand" ]; then
 		__gitcomp "$subcommands"
 		return
@@ -1749,7 +1749,7 @@
 _git_remote ()
 {
 	local subcommands="add rename rm show prune update set-head"
-	local subcommand="$(__git_find_subcommand "$subcommands")"
+	local subcommand="$(__git_find_on_cmdline "$subcommands")"
 	if [ -z "$subcommand" ]; then
 		__gitcomp "$subcommands"
 		return
@@ -1877,7 +1877,7 @@
 _git_stash ()
 {
 	local subcommands='save list show apply clear drop pop create branch'
-	local subcommand="$(__git_find_subcommand "$subcommands")"
+	local subcommand="$(__git_find_on_cmdline "$subcommands")"
 	if [ -z "$subcommand" ]; then
 		__gitcomp "$subcommands"
 	else
@@ -1908,7 +1908,7 @@
 	__git_has_doubledash && return
 
 	local subcommands="add status init update summary foreach sync"
-	if [ -z "$(__git_find_subcommand "$subcommands")" ]; then
+	if [ -z "$(__git_find_on_cmdline "$subcommands")" ]; then
 		local cur="${COMP_WORDS[COMP_CWORD]}"
 		case "$cur" in
 		--*)
@@ -1930,7 +1930,7 @@
 		proplist show-ignore show-externals branch tag blame
 		migrate
 		"
-	local subcommand="$(__git_find_subcommand "$subcommands")"
+	local subcommand="$(__git_find_on_cmdline "$subcommands")"
 	if [ -z "$subcommand" ]; then
 		__gitcomp "$subcommands"
 	else