Checks#id(String): Rename parameter to checkerUuidString

The old name 'uuidString' could lead users to think that they should
provide a UUID of the check.

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: I737dec65a2eb41ece05330f98862f7ad7e88165c
diff --git a/java/com/google/gerrit/plugins/checks/api/Checks.java b/java/com/google/gerrit/plugins/checks/api/Checks.java
index 3f0fd1e..dec5cae 100644
--- a/java/com/google/gerrit/plugins/checks/api/Checks.java
+++ b/java/com/google/gerrit/plugins/checks/api/Checks.java
@@ -24,13 +24,13 @@
 public interface Checks {
   CheckApi id(CheckerUuid checkerUuid) throws RestApiException;
 
-  default CheckApi id(String uuidString) throws RestApiException {
+  default CheckApi id(String checkerUuidString) throws RestApiException {
     return id(
-        CheckerUuid.tryParse(uuidString)
+        CheckerUuid.tryParse(checkerUuidString)
             .orElseThrow(
                 () ->
                     new BadRequestException(
-                        String.format("invalid checker UUID: %s", uuidString))));
+                        String.format("invalid checker UUID: %s", checkerUuidString))));
   }
 
   CheckApi create(CheckInput input) throws RestApiException;