[RFC PATCH v3 1/4] branch: improve documentation and naming of 'create_branch()'

[Kaartic Sivaraam <kaartic.sivaraam@gmail.com>]

From: Kaartic Sivaraam <kaarticsivaraam91196@gmail.com>

The documentation for 'create_branch()' was incomplete as it didn't say
what certain parameters were used for. Further a parameter name wasn't
very communicative.

So, add missing documentation for the sake of completeness and easy
reference. Also, rename the concerned parameter to make its name more
communicative.

Signed-off-by: Kaartic Sivaraam <kaarticsivaraam91196@gmail.com>
---
 branch.c | 4 ++--
 branch.h | 7 ++++++-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/branch.c b/branch.c
index fe1e1c367..ea6e2b359 100644
--- a/branch.c
+++ b/branch.c
@@ -244,7 +244,7 @@ N_("\n"
 "\"git push -u\" to set the upstream config as you push.");
 
 void create_branch(const char *name, const char *start_name,
-		   int force, int reflog, int clobber_head,
+		   int force, int reflog, int clobber_head_ok,
 		   int quiet, enum branch_track track)
 {
 	struct commit *commit;
@@ -258,7 +258,7 @@ void create_branch(const char *name, const char *start_name,
 	if (track == BRANCH_TRACK_EXPLICIT || track == BRANCH_TRACK_OVERRIDE)
 		explicit_tracking = 1;
 
-	if ((track == BRANCH_TRACK_OVERRIDE || clobber_head)
+	if ((track == BRANCH_TRACK_OVERRIDE || clobber_head_ok)
 	    ? validate_branchname(name, &ref)
 	    : validate_new_branchname(name, &ref, force)) {
 		if (!force)
diff --git a/branch.h b/branch.h
index be5e5d130..1512b78d1 100644
--- a/branch.h
+++ b/branch.h
@@ -15,12 +15,17 @@
  *
  *   - reflog creates a reflog for the branch
  *
+ *   - clobber_head_ok allows the currently checked out (hence existing)
+ *     branch to be overwritten; without 'force', it has no effect.
+ *
+ *   - quiet suppresses tracking information
+ *
  *   - track causes the new branch to be configured to merge the remote branch
  *     that start_name is a tracking branch for (if any).
  */
 void create_branch(const char *name, const char *start_name,
 		   int force, int reflog,
-		   int clobber_head, int quiet, enum branch_track track);
+		   int clobber_head_ok, int quiet, enum branch_track track);
 
 /*
  * Check if 'name' can be a valid name for a branch; die otherwise.
-- 
2.15.0.461.gf957c703b.dirty