rekahsoft-gnu: Rename go-github-com-darthsim-overmind to overmind

* rekahsoft-gnu/packages/golang.scm (go-github-com-darthsim-overmind): Rename
package to 'overmind'. Add 'which' as propagated-input.

rekahsoft-gnu/packages/golang.scm

@@ -122,7 +122,7 @@ platforms.  Gox will also build the cross-compilation toolchain for you.")
 
 (define-public go-github-com-darthsim-overmind
   (package
-    (name "go-github-com-darthsim-overmind")
+    (name "overmind")
     (version "1.2.1")
     (source (origin
               (method git-fetch)
@@ -134,7 +134,8 @@ platforms.  Gox will also build the cross-compilation toolchain for you.")
                (base32
                 "11ws9rsy8ladjp1y3b6vva9sjmw4s24xc1w18lyhfz63xc908nfw"))))
     (build-system go-build-system)
-    (propagated-inputs (list tmux))
+    (propagated-inputs (list which ; used to locate tmux
+                             tmux))
     (arguments
      '(#:import-path "github.com/DarthSim/overmind"))
     (home-page "https://github.com/DarthSim/overmind")