Clarify GTDiff options argument documentation

The diff initializers refer to their options arguments taking
"any of the above options", but both GTDiffOptions and
GTDiffFindOptions are defined above them and the diff
initializers really only accept GTDiffOptions.

Author: nanotech

ObjectiveGit/GTDiff.h

@@ -193,7 +193,7 @@ typedef NS_OPTIONS(NSInteger, GTDiffFindOptionsFlags) {
 /// newTree    - The "right" side of the diff. May be nil to represent an empty
 ///              tree.
 /// repository - The repository to be used for the diff. Cannot be nil.
-/// options    - A dictionary containing any of the above options key constants, or
+/// options    - A dictionary containing any of the GTDiffOptions key constants, or
 ///              nil to use the defaults.
 /// error      - Populated with an `NSError` object on error, if information is
 ///              available.
@@ -210,7 +210,7 @@ typedef NS_OPTIONS(NSInteger, GTDiffFindOptionsFlags) {
 /// newIndex   - The "right" side of the diff. May be nil to represent an empty
 ///              index.
 /// repository - The repository to be used for the diff. Cannot be nil.
-/// options    - A dictionary containing any of the above options key constants, or
+/// options    - A dictionary containing any of the GTDiffOptions key constants, or
 ///              nil to use the defaults.
 /// error      - Populated with an `NSError` object on error, if information is
 ///              available.
@@ -227,7 +227,7 @@ typedef NS_OPTIONS(NSInteger, GTDiffFindOptionsFlags) {
 /// newIndex   - The "right" side of the diff. May be nil to represent an empty
 ///              index.
 /// repository - The repository to be used for the diff. Cannot be nil.
-/// options    - A dictionary containing any of the above options key constants, or
+/// options    - A dictionary containing any of the GTDiffOptions key constants, or
 ///              nil to use the defaults.
 /// error      - Populated with an `NSError` object on error, if information is
 ///              available.
@@ -247,7 +247,7 @@ typedef NS_OPTIONS(NSInteger, GTDiffFindOptionsFlags) {
 ///              repository. The left side of the diff. May be nil to represent an
 ///              empty tree.
 /// repository - The repository to be used for the diff.
-/// options    - A dictionary containing any of the above options key constants, or
+/// options    - A dictionary containing any of the GTDiffOptions key constants, or
 ///              nil to use the defaults.
 /// error      - Populated with an `NSError` object on error, if information is
 ///              available.
@@ -260,7 +260,7 @@ typedef NS_OPTIONS(NSInteger, GTDiffFindOptionsFlags) {
 /// This matches the `git diff` command.
 ///
 /// repository - The repository to be used for the diff. May not be nil.
-/// options    - A dictionary containing any of the above options key constants,
+/// options    - A dictionary containing any of the GTDiffOptions key constants,
 ///              or nil to use the defaults.
 /// error      - Populated with an `NSError` object on error, if information is
 ///              available.
@@ -273,7 +273,7 @@ typedef NS_OPTIONS(NSInteger, GTDiffFindOptionsFlags) {
 /// tree       - The tree to be diffed. The tree will be the left side of the diff.
 ///              May be nil to represent an empty tree.
 /// repository - The repository to be used for the diff. May not be nil.
-/// options    - A dictionary containing any of the above options key constants, or
+/// options    - A dictionary containing any of the GTDiffOptions key constants, or
 ///              nil to use the defaults.
 /// error      - Populated with an `NSError` object on error, if information is
 ///              available.
@@ -287,7 +287,7 @@ typedef NS_OPTIONS(NSInteger, GTDiffFindOptionsFlags) {
 /// the working directory as if everything would be part of the initial commit.
 ///
 /// repository - The repository to be used for the diff. May not be nil.
-/// options    - A dictionary containing any of the above options key constants,
+/// options    - A dictionary containing any of the GTDiffOptions key constants,
 ///              or nil to use the defaults.
 /// error      - Populated if an error occurs.
 ///
@@ -325,7 +325,7 @@ typedef NS_OPTIONS(NSInteger, GTDiffFindOptionsFlags) {
 
 /// Modify the diff list to combine similar changes using the given options.
 ///
-/// options - A dictionary containing any of the above find options key constants
+/// options - A dictionary containing any of the GTDiffFindOptions key constants
 ///           or nil to use the defaults.
 - (void)findSimilarWithOptions:(nullable NSDictionary *)options;