Removed trailing spaces.

imgui.h

@@ -677,7 +677,7 @@ namespace ImGui
     // - For 'int user_key_index' you can use your own indices/enums according to how your backend/engine stored them in io.KeysDown[].
     // - We don't know the meaning of those value. You can use GetKeyIndex() to map a ImGuiKey_ value into the user index.
     IMGUI_API int           GetKeyIndex(ImGuiKey imgui_key);                                    // map ImGuiKey_* values into user's key index. == io.KeyMap[key]
-    IMGUI_API bool          IsKeyDown(int user_key_index);                                      // is key being held. == io.KeysDown[user_key_index]. 
+    IMGUI_API bool          IsKeyDown(int user_key_index);                                      // is key being held. == io.KeysDown[user_key_index].
     IMGUI_API bool          IsKeyPressed(int user_key_index, bool repeat = true);               // was key pressed (went from !Down to Down)? if repeat=true, uses io.KeyRepeatDelay / KeyRepeatRate
     IMGUI_API bool          IsKeyReleased(int user_key_index);                                  // was key released (went from Down to !Down)?
     IMGUI_API int           GetKeyPressedAmount(int key_index, float repeat_delay, float rate); // uses provided repeat rate/delay. return a count, most often 0 or 1 but might be >1 if RepeatRate is small enough that DeltaTime > RepeatRate
@@ -1178,7 +1178,7 @@ enum ImGuiColorEditFlags_
 #endif
 };
 
-// Identify a mouse button. 
+// Identify a mouse button.
 // Those values are guaranteed to be stable and we frequently use 0/1 directly. Named enums provided for convenience.
 enum ImGuiMouseButton_
 {