tools: switch to camelcasing in apilinks.js

Use camelcasing in tools/doc/apilinks.js.

PR-URL: #27607
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

tools/doc/apilinks.js

@@ -36,10 +36,10 @@ function execSync(command) {
 }
 
 // Determine origin repo and tag (or hash) of the most recent commit.
-const local_branch = execSync('git name-rev --name-only HEAD');
-const tracking_remote = execSync(`git config branch.${local_branch}.remote`);
-const remote_url = execSync(`git config remote.${tracking_remote}.url`);
-const repo = (remote_url.match(/(\w+\/\w+)\.git\r?\n?$/) ||
+const localBranch = execSync('git name-rev --name-only HEAD');
+const trackingRemote = execSync(`git config branch.${localBranch}.remote`);
+const remoteUrl = execSync(`git config remote.${trackingRemote}.url`);
+const repo = (remoteUrl.match(/(\w+\/\w+)\.git\r?\n?$/) ||
              ['', 'nodejs/node'])[1];
 
 const hash = execSync('git log -1 --pretty=%H') || 'master';