customversion: add mutant standard disclaimer

patches/customversion/addpatch.py

@@ -25,9 +25,16 @@ except:
 
 hostname = socket.gethostname().split(".")[0]
 
-customtext += ", built on {}@{} at {}".format(uname,
+disclaimers = ""
+
+if "mutant" in sys.argv:
+    disclaimers += " | This build uses Mutant Standard"\
+                   " emoji (https://mutant.tech)."
+
+customtext += ", built on {}@{} at {}{}".format(uname,
                                                 hostname,
-                                              timestamp)
+                                                timestamp,
+                                                disclaimers)
 
 # Replace the target string
 filedata = filedata.replace('with Cutthecord patches"',