Reduce branches and effective scope of some variables

Library/Homebrew/formula.rb

@@ -513,25 +513,24 @@ class Formula
 
     if ARGV.verbose?
       rd, wr = IO.pipe
-      out = wr
-    else
-      out = log
-    end
-
       begin
         pid = fork do
-        if rd
           rd.close
           log.close
+          exec_cmd(cmd, args, wr, logfn)
         end
-        exec_cmd(cmd, args, out, logfn)
+        wr.close
-      end
-      wr.close if wr
 
         while buf = rd.gets
           log.puts buf
           puts buf
-      end if rd
+        end
+      ensure
+        rd.close unless rd.closed?
+      end
+    else
+      pid = fork { exec_cmd(cmd, args, log, logfn) }
+    end
 
     Process.wait(pid)
 
@@ -545,9 +544,6 @@ class Formula
       Homebrew.dump_build_config(log)
       raise BuildError.new(self, cmd, args)
     end
-    ensure
-      rd.close if rd && !rd.closed?
-    end
   end
 
   private