Fixing lldb log list text for commands category

llvm-svn: 180612
diff --git a/lldb/source/lldb-log.cpp b/lldb/source/lldb-log.cpp
index 7c78fed..d6a568d 100644
--- a/lldb/source/lldb-log.cpp
+++ b/lldb/source/lldb-log.cpp
@@ -234,7 +234,7 @@
                  "  all - turn on all available logging categories\n"
                  "  api - enable logging of API calls and return values\n"
                  "  break - log breakpoints\n"
-                 "  command - log command argument parsing\n"
+                 "  commands - log command argument parsing\n"
                  "  default - enable the default set of logging categories for liblldb\n"
                  "  dyld - log shared library related activities\n"
                  "  events - log broadcaster, listener and event queue activities\n"