[TC] Add some logging

scripts/src/main/kotlin/scripts/release/calculateNewDevVersion.kt

@@ -15,9 +15,16 @@ fun main(args: Array<String>) {
   val (lastVersion, objectId) = getVersion(projectDir, onlyStable = true)
   println("Last version: $lastVersion, hash: ${objectId.name}")
 
+  val branch = getRepo(projectDir).branch
+  check(branch == "master") {
+    "We should be on master branch"
+  }
   val git = getGit(projectDir)
-  val logDiff = git.log().setMaxCount(500).call().takeWhile { it.id.name != objectId.name }
+  val log = git.log().setMaxCount(500).call()
+  println("First commit hash in log: " + log.first().name)
+  val logDiff = log.takeWhile { it.id.name != objectId.name }
   val numCommits = logDiff.size
+  println("Log diff size is $numCommits")
   check(numCommits < 450) {
     "More than 450 commits detected since the last release. This is suspicious."
   }