diff -r 191419fac368 -r fdd23370b98f src/Pure/Isar/isar_syn.ML
--- a/src/Pure/Isar/isar_syn.ML	Tue Jul 02 15:38:48 2002 +0200
+++ b/src/Pure/Isar/isar_syn.ML	Tue Jul 02 15:39:49 2002 +0200
@@ -581,7 +581,8 @@
     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_antiquotations));
 
 val thms_containingP =
-  OuterSyntax.improper_command "thms_containing" "print theorems containing certain constants"
+  OuterSyntax.improper_command "thms_containing"
+    "print facts containing certain constants or variables"
     K.diag (Scan.repeat P.term >> (Toplevel.no_timing oo IsarCmd.print_thms_containing));
 
 val thm_depsP =