Fix comment typo.

llvm-svn: 140222
diff --git a/lldb/source/Interpreter/CommandObject.cpp b/lldb/source/Interpreter/CommandObject.cpp
index 0bf4279..eb1c921 100644
--- a/lldb/source/Interpreter/CommandObject.cpp
+++ b/lldb/source/Interpreter/CommandObject.cpp
@@ -757,7 +757,7 @@
     id_range_arg.arg_type = eArgTypeBreakpointIDRange;
     id_range_arg.arg_repetition = eArgRepeatOptional;
 
-    // The first (and only) argument for this command could be either a id or a id_range.
+    // The first (and only) argument for this command could be either an id or an id_range.
     // Push both variants into the entry for the first argument for this command.
     arg.push_back(id_arg);
     arg.push_back(id_range_arg);