log: fix traceback for log -k caused by 1ef630452e0b (issue1805)

mercurial/commands.py

@@ -2052,7 +2052,7 b' def log(ui, repo, *pats, **opts):'
                 for k in [kw.lower() for kw in opts['keyword']]:
                     if not (k in ctx.user().lower() or
                             k in ctx.description().lower() or
-                            k in " ".join(ctx.files()[3]).lower()):
+                            k in " ".join(ctx.files()).lower()):
                         miss = 1
                         break
                 if miss:

tests/test-log

@@ -104,6 +104,9 b" hg log -r ''"
 echo '% log -r <some unknown node id>'
 hg log -r 1000000000000000000000000000000000000000
 
+echo '% log -k r1'
+hg log -k r1
+
 cd ..
 
 hg init usertest

tests/test-log.out

@@ -239,6 +239,12 b' diff --git a/b1 b/b1'
 abort: 00changelog.i@: ambiguous identifier!
 % log -r <some unknown node id>
 abort: unknown revision '1000000000000000000000000000000000000000'!
+% log -k r1
+changeset:   1:3d5bf5654eda
+user:        test
+date:        Thu Jan 01 00:00:01 1970 +0000
+summary:     r1
+
 adding a
 adding b
 changeset:   0:29a4c94f1924