Since an address (0x12346) is an expression, be brief.

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@173757 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Interpreter/CommandObject.cpp b/source/Interpreter/CommandObject.cpp
index c524c98..36b2d7a 100644
--- a/source/Interpreter/CommandObject.cpp
+++ b/source/Interpreter/CommandObject.cpp
@@ -1017,7 +1017,7 @@
 CommandObject::g_arguments_data[] =
 {
     { eArgTypeAddress, "address", CommandCompletions::eNoCompletion, { NULL, false }, "A valid address in the target program's execution space." },
-    { eArgTypeAddressOrExpression, "address-expression", CommandCompletions::eNoCompletion, { NULL, false }, "A valid address in the target program's execution space or an expression that can be evaluated to an address." },
+    { eArgTypeAddressOrExpression, "address-expression", CommandCompletions::eNoCompletion, { NULL, false }, "An expression that resolves to an address." },
     { eArgTypeAliasName, "alias-name", CommandCompletions::eNoCompletion, { NULL, false }, "The name of an abbreviation (alias) for a debugger command." },
     { eArgTypeAliasOptions, "options-for-aliased-command", CommandCompletions::eNoCompletion, { NULL, false }, "Command options to be used as part of an alias (abbreviation) definition.  (See 'help commands alias' for more information.)" },
     { eArgTypeArchitecture, "arch", CommandCompletions::eArchitectureCompletion, { arch_helper, true }, "The architecture name, e.g. i386 or x86_64." },