Soft-wrap hard-wrapped comments in helper/promo_screenshots_helper.rb

Use a longer line length and prefer semantic line breaks to hard-wraps.

See
#342 (comment)

Author: mokagio

lib/fastlane/plugin/wpmreleasetoolkit/helper/promo_screenshots_helper.rb

@@ -117,8 +117,7 @@ def draw_device_frame_to_canvas(device, canvas)
       end
 
       def draw_screenshot_to_canvas(entry, canvas, device)
-        # Don't require a screenshot to be present – we can just skip
-        # this function if one doesn't exist.
+        # Don't require a screenshot to be present – we can just skip this function if one doesn't exist.
         return canvas if entry['screenshot'].nil?
 
         device_mask = device['screenshot_mask']