try writing to GH_OUT file better

Author: 2bndy5

cpp-linter-lib/src/rest_api/github_api.rs

@@ -128,15 +128,16 @@ impl RestApiClient for GithubApiClient {
                 .append(true)
                 .open(gh_out)
                 .expect("GITHUB_OUTPUT file could not be opened");
-            if let Err(e) = writeln!(
-                gh_out_file,
-                "checks-failed={}\nformat-checks-failed={}\ntidy-checks-failed={}",
-                checks_failed,
-                format_checks_failed.unwrap_or(0),
-                tidy_checks_failed.unwrap_or(0),
-            ) {
-                log::error!("Could not write to GITHUB_OUTPUT file: {}", e);
+            for (prompt, value) in [
+                ("checks-failed", Some(checks_failed)),
+                ("format-checks-failed", format_checks_failed),
+                ("tidy-checks-failed", tidy_checks_failed),
+            ] {
+                if let Err(e) = writeln!(gh_out_file, "{prompt}={}", value.unwrap_or(0),) {
+                    log::error!("Could not write to GITHUB_OUTPUT file: {}", e);
+                }
             }
+            gh_out_file.flush().expect("Failed to flush buffer to GITHUB_OUTPUT file");
         }
         log::info!(
             "{} clang-format-checks-failed",