cleaned up system tag.

__system.cpp

@@ -31,9 +31,9 @@ namespace jet {
 	    close(fdi[1]);
 	    dup2(fdi[0], 0);
 	 }
-	 rc = system(variables["cmd"].c_str());
+	 system(variables["cmd"].c_str());
 	 close(fdo[1]);
-	 exit(rc);
+	 exit(errno);
       }
       close(fdo[1]);
       if(variableDefined("name")) 
@@ -41,9 +41,6 @@ namespace jet {
       else 
 	out.read(fdo[0]);               
       waitpid(pid, &status, 0);
-      if(variableDefined("status"))
-	resolveKeyword("status");
-      global.variables[variables["status"]] = (status >> 8 & 255);
    }
    
 }