Clean up, clarify and standardize help text, and fix a few help text formatting problems.

llvm-svn: 113408
diff --git a/lldb/source/Commands/CommandObjectSource.cpp b/lldb/source/Commands/CommandObjectSource.cpp
index 937e624..65a95db 100644
--- a/lldb/source/Commands/CommandObjectSource.cpp
+++ b/lldb/source/Commands/CommandObjectSource.cpp
@@ -98,7 +98,7 @@
 public:   
     CommandObjectSourceInfo() :
         CommandObject ("source info",
-                         "Display info on the source lines from the current executable's debug info.",
+                         "Display information about the source lines from the current executable's debug info.",
                          "source info [<cmd-options>]")
     {
     }
@@ -229,7 +229,7 @@
 public:   
     CommandObjectSourceList() :
         CommandObject ("source list",
-                         "Display source files from the current executable's debug info.",
+                         "Display source code (as specified) based on the current executable's debug info.",
                          "source list [<cmd-options>] [<filename>]")
     {
     }