Merge pull request libgit2#4127 from Uncommon/comment

Minor comment fix

Author: Edward Thomson

include/git2/index.h

@@ -575,15 +575,16 @@ GIT_EXTERN(int) git_index_remove_bypath(git_index *index, const char *path);
  * This method will fail in bare index instances.
  *
  * The `pathspec` is a list of file names or shell glob patterns that will
- * matched against files in the repository's working directory.  Each file
- * that matches will be added to the index (either updating an existing
- * entry or adding a new entry).  You can disable glob expansion and force
- * exact matching with the `GIT_INDEX_ADD_DISABLE_PATHSPEC_MATCH` flag.
+ * be matched against files in the repository's working directory.  Each
+ * file that matches will be added to the index (either updating an
+ * existing entry or adding a new entry).  You can disable glob expansion
+ * and force exact matching with the `GIT_INDEX_ADD_DISABLE_PATHSPEC_MATCH`
+ * flag.
  *
  * Files that are ignored will be skipped (unlike `git_index_add_bypath`).
  * If a file is already tracked in the index, then it *will* be updated
- * even if it is ignored.  Pass the `GIT_INDEX_ADD_FORCE` flag to
- * skip the checking of ignore rules.
+ * even if it is ignored.  Pass the `GIT_INDEX_ADD_FORCE` flag to skip
+ * the checking of ignore rules.
  *
  * To emulate `git add -A` and generate an error if the pathspec contains
  * the exact path of an ignored file (when not using FORCE), add the