Fixed small spelling error

PythonServer/pos-python-server.py

@@ -201,7 +201,7 @@ async def get_archiver_from_secs(pvlist: str, seconds: int, samples: int, output
 def search_cf(searchlist: str, output: str):
     wordlist = searchlist.split(",")
     if len(wordlist) <= 1 and len(wordlist[0]) < 2:
-        return "Too few worlds or first word shorter than three chars"
+        return "Too few words or first word shorter than three chars"
 
     all_casings = (
         lambda s: s