prefix OS name in log on Android

docs/release-notes.md

@@ -6,6 +6,9 @@
   * Added support for self-broadcasts through the multiplayer API. (Mods can now send messages to the current machine. That enables simple integrations between mods without needing an API, and lets mods notify a host mod without needing different code depending on whether the current player is the host or a farmhand.)
   * Eliminated unneeded network messages when broadcasting to a peer who can't handle the message (e.g. because they don't have SMAPI or don't have the target mod).
 
+* For SMAPI/tool developers:
+  * The SMAPI log now prefixes the OS name with `Android` on Android.
+
 ## 3.2
 Released 01 February 2020 for Stardew Valley 1.4.1 or later.
 

src/SMAPI.Toolkit/Utilities/EnvironmentUtility.cs

@@ -53,7 +53,19 @@ namespace StardewModdingAPI.Toolkit.Utilities
             }
             catch { }
 #endif
-            return (platform == Platform.Mac ? "MacOS " : "") + Environment.OSVersion;
+
+            string name = Environment.OSVersion.ToString();
+            switch (platform)
+            {
+                case Platform.Android:
+                    name = $"Android {name}";
+                    break;
+
+                case Platform.Mac:
+                    name = $"MacOS {name}";
+                    break;
+            }
+            return name;
         }
 
         /// <summary>Get the name of the Stardew Valley executable.</summary>