Add _Available since Ninja 1.4._ to deps and recompact

Author: adzenith

doc/manual.asciidoc

@@ -280,9 +280,9 @@ by the Clang tooling interface.
 _Available since Ninja 1.2._
 
 `deps`:: show all dependencies stored in the `.ninja_deps` file. When given a
-target, show just the target's dependencies.
+target, show just the target's dependencies. _Available since Ninja 1.4._
 
-`recompact`:: recompact the `.ninja_deps` file.
+`recompact`:: recompact the `.ninja_deps` file. _Available since Ninja 1.4._
 
 
 Writing your own Ninja files