Add new pseudo target


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18723 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/CommandGuide/Makefile b/docs/CommandGuide/Makefile
index 51088d3..836c461 100644
--- a/docs/CommandGuide/Makefile
+++ b/docs/CommandGuide/Makefile
@@ -57,6 +57,8 @@
 
 $(HTML) : html/.dir man/.dir man/man1/.dir ps/.dir
 
+html: $(HTML)
+
 $(BUILD_OBJ_DIR)/%.html: %.pod
 	$(POD2HTML) --css=manpage.css --htmlroot=. --podpath=. \
 	  --noindex --infile=$< --outfile=$@ --title=$*