Small help text fixes, to make it more consistent and accurate.

Temporarily remove -l option from 'expr' command (at Sean's request).

llvm-svn: 113298
diff --git a/lldb/source/Interpreter/CommandObjectScript.cpp b/lldb/source/Interpreter/CommandObjectScript.cpp
index 1494065..a9d9afc 100644
--- a/lldb/source/Interpreter/CommandObjectScript.cpp
+++ b/lldb/source/Interpreter/CommandObjectScript.cpp
@@ -29,8 +29,8 @@
 
 CommandObjectScript::CommandObjectScript (ScriptLanguage script_lang) :
     CommandObject ("script",
-                   "Passes an expression to the script interpreter for evaluation and returns the results. Drops user into the interactive interpreter if no expressions are given.",
-                   "script [<script-expressions-for-evaluation>]"),
+                   "Pass an expression to the script interpreter for evaluation and return the results. Drop into the interactive interpreter if no expression is given.",
+                   "script [<script-expression-for-evaluation>]"),
     m_script_lang (script_lang),
     m_interpreter_ap ()
 {