checkout: fix documentation code alignment

include/git2/checkout.h

@@ -40,13 +40,13 @@ typedef struct git_checkout_opts {
  * @param repo repository to check out (must be non-bare)
  * @param opts specifies checkout options (may be NULL)
  * @param stats structure through which progress information is reported
- * @return 0 on success, GIT_ERROR otherwise (use giterr_last for information about the error)
+ * @return 0 on success, GIT_ERROR otherwise (use giterr_last for information
+ * about the error)
  */
-GIT_EXTERN(int) git_checkout_head(git_repository *repo,
-											 git_checkout_opts *opts,
-											 git_indexer_stats *stats);
-
-
+GIT_EXTERN(int) git_checkout_head(
+	git_repository *repo,
+	git_checkout_opts *opts,
+	git_indexer_stats *stats);
 
 /**
  * Updates files in the working tree to match a commit pointed to by a ref.
@@ -54,11 +54,13 @@ GIT_EXTERN(int) git_checkout_head(git_repository *repo,
  * @param ref reference to follow to a commit
  * @param opts specifies checkout options (may be NULL)
  * @param stats structure through which progress information is reported
- * @return 0 on success, GIT_ERROR otherwise (use giterr_last for information about the error)
+ * @return 0 on success, GIT_ERROR otherwise (use giterr_last for information
+ * about the error)
  */
-GIT_EXTERN(int) git_checkout_reference(git_reference *ref,
-													git_checkout_opts *opts,
-													git_indexer_stats *stats);
+GIT_EXTERN(int) git_checkout_reference(
+	git_reference *ref,
+	git_checkout_opts *opts,
+	git_indexer_stats *stats);
 
 
 /** @} */