revset: update sorting of symbols

mercurial/revset.py

@@ -828,22 +828,22 b' symbols = {'
     "grep": grep,
     "head": head,
     "heads": heads,
+    "id": node,
     "keyword": keyword,
     "last": last,
     "limit": limit,
     "max": maxrev,
+    "merge": merge,
     "min": minrev,
-    "merge": merge,
     "modifies": modifies,
-    "id": node,
     "outgoing": outgoing,
     "p1": p1,
     "p2": p2,
     "parents": parents,
     "present": present,
     "removes": removes,
+    "rev": rev,
     "reverse": reverse,
-    "rev": rev,
     "roots": roots,
     "sort": sort,
     "tag": tag,