revset and fileset: fix typos in parser error messages

mercurial/fileset.py

@@ -282,7 +282,7 b' def size(mctx, x):'
     - 4k - 1MB (files from 4096 bytes to 1048576 bytes)
     """
 
-    expr = getstring(x, _("grep requires a pattern")).strip()
+    expr = getstring(x, _("size requires an expression")).strip()
     if '-' in expr: # do we have a range?
         a, b = expr.split('-', 1)
         a = _sizetoint(a)

mercurial/revset.py

@@ -417,7 +417,7 b' def follow(repo, subset, x):'
     l = getargs(x, 0, 1, _("follow takes no arguments or a filename"))
     p = repo['.'].rev()
     if l:
-        x = getstring(l[0], "follow expected a filename")
+        x = getstring(l[0], _("follow expected a filename"))
         s = set(ctx.rev() for ctx in repo['.'][x].ancestors())
     else:
         s = set(repo.changelog.ancestors(p))
@@ -604,7 +604,7 b' def outgoing(repo, subset, x):'
     """
     import hg # avoid start-up nasties
     # i18n: "outgoing" is a keyword
-    l = getargs(x, 0, 1, _("outgoing requires a repository path"))
+    l = getargs(x, 0, 1, _("outgoing takes one or no arguments"))
     # i18n: "outgoing" is a keyword
     dest = l and getstring(l[0], _("outgoing requires a repository path")) or ''
     dest = repo.ui.expandpath(dest or 'default-push', dest or 'default')