Cleaned up many error codes. For any who is filling in error strings into
lldb_private::Error objects the rules are:
- short strings that don't start with a capitol letter unless the name is a
  class or anything else that is always capitolized
- no trailing newline character
- should be one line if possible

Implemented a first pass at adding "--gdb-format" support to anything that
accepts format with optional size/count.

llvm-svn: 142999
diff --git a/lldb/source/Commands/CommandObjectArgs.cpp b/lldb/source/Commands/CommandObjectArgs.cpp
index c0f9454..dfbbe79 100644
--- a/lldb/source/Commands/CommandObjectArgs.cpp
+++ b/lldb/source/Commands/CommandObjectArgs.cpp
@@ -58,7 +58,7 @@
     switch (short_option)
     {
         default:
-            error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option);
+            error.SetErrorStringWithFormat("invalid short option character '%c'", short_option);
             break;
     }