Fix instructional comment

AndyDiamondstein · web-flow · commit 4dc5d936d545 · 2017-10-20T12:37:12.000-04:00
diff --git a/python/search.py b/python/search.py
@@ -2,7 +2,7 @@
 
 # This sample executes a search request for the specified search term.
 # Sample usage:
-#   python search.py --key=surfing --max-results=10
+#   python search.py --q=surfing --max-results=10
 # NOTE: To use the sample, you must provide a developer key obtained
 #       in the Google APIs Console. Search for "REPLACE_ME" in this code
 #       to find the correct place to provide that key..
