fix(cli): handle ignored system call results

Author: GaspardKirira

src/commands/TestsCommand.cpp

@@ -86,7 +86,9 @@ namespace
 
 #ifndef _WIN32
     static constexpr char clearLine[] = "\r\033[2K";
-    (void)::write(STDOUT_FILENO, clearLine, sizeof(clearLine) - 1);
+    const ssize_t written =
+        ::write(STDOUT_FILENO, clearLine, sizeof(clearLine) - 1);
+    (void)written;
 #endif
   }
 

src/commands/deploy/DeployRunner.cpp

@@ -166,7 +166,10 @@ namespace vix::commands::deploy::runner
         output::command(std::cout, logsCmd);
 
         if (!options.dryRun)
-          (void)std::system(logsCmd.c_str());
+        {
+          const int logsExitCode = std::system(logsCmd.c_str());
+          (void)logsExitCode;
+        }
       }
 
       return 1;