conf/gitignore: use correct OS name (#4240)

This is no more OSX, but macOS. Long live macOS!

conf/gitignore/macOS

@@ -1,24 +1,25 @@
-.DS_Store
+.DS_Store
-.AppleDouble
+.AppleDouble
-.LSOverride
+.LSOverride
-
+
-# Icon must end with two \r
+# Icon must end with two \r
-Icon
+Icon
-
+
-# Thumbnails
+
-._*
+# Thumbnails
-
+._*
-# Files that might appear in the root of a volume
+
-.DocumentRevisions-V100
+# Files that might appear in the root of a volume
-.fseventsd
+.DocumentRevisions-V100
-.Spotlight-V100
+.fseventsd
-.TemporaryItems
+.Spotlight-V100
-.Trashes
+.TemporaryItems
-.VolumeIcon.icns
+.Trashes
-
+.VolumeIcon.icns
-# Directories potentially created on remote AFP share
+
-.AppleDB
+# Directories potentially created on remote AFP share
-.AppleDesktop
+.AppleDB
-Network Trash Folder
+.AppleDesktop
-Temporary Items
+Network Trash Folder
-.apdisk
+Temporary Items
+.apdisk