Remove the C++ compilation warnings part1 #3

unused variables format arguments throw from desctructor

src/Base/EPTF_CLL_Base_ExternalFunctions.cc

@@ -241,7 +241,7 @@ INTEGER EPTF__CLL__Base__Functions::f__EPTF__Base__executeShell(const CHARSTRING
     // print error message here:
     fprintf(stderr,"f_EPTF_Base_executeShell: Failed to start the command %s",(const char*)cmd);
     fflush(stderr);
-    argv[0]="false";
+    argv[0]=strdup("false");
     argv[1]=NULL;
     if(execvp(argv[0],argv)< 0) {
       // this should be never reached
@@ -510,7 +510,7 @@ EPTF__CLL__Common__Definitions::EPTF__CharstringList EPTF__CLL__Base__Functions:
     }
   } while(pid > 1); // pid 1 is [init], that is the top of the tree.
 
-  TTCN_Logger::log(TTCN_Logger::TTCN_DEBUG, CHARSTRING("f__EPTF__Base__getEffectiveCmdline: Reached the end, returning with failover."));
+  TTCN_Logger::log(TTCN_Logger::TTCN_DEBUG, "f__EPTF__Base__getEffectiveCmdline: Reached the end, returning with failover.");
   return retVal; // default if expect-ed parent not found.
 }