Submodules: use 'config' variable name rather than 'bbc'

Change-Id: I338377fc72a310ed61c8894f6afac379b075171a
diff --git a/java/com/google/gerrit/server/submit/GitModules.java b/java/com/google/gerrit/server/submit/GitModules.java
index 1fccbdd..f616e92 100644
--- a/java/com/google/gerrit/server/submit/GitModules.java
+++ b/java/com/google/gerrit/server/submit/GitModules.java
@@ -77,14 +77,15 @@
           return;
         }
       }
-      BlobBasedConfig bbc;
+      BlobBasedConfig config;
       try {
-        bbc = new BlobBasedConfig(null, or.repo, commit, GIT_MODULES);
+        config = new BlobBasedConfig(null, or.repo, commit, GIT_MODULES);
       } catch (ConfigInvalidException e) {
         throw new IOException(
             "Could not read .gitmodules of super project: " + branch.getParentKey(), e);
       }
-      subscriptions = new SubmoduleSectionParser(bbc, canonicalWebUrl, branch).parseAllSections();
+      subscriptions =
+          new SubmoduleSectionParser(config, canonicalWebUrl, branch).parseAllSections();
     } catch (NoSuchProjectException e) {
       throw new IOException(e);
     }
diff --git a/java/com/google/gerrit/server/util/git/SubmoduleSectionParser.java b/java/com/google/gerrit/server/util/git/SubmoduleSectionParser.java
index a92b7fd..f05d1d7 100644
--- a/java/com/google/gerrit/server/util/git/SubmoduleSectionParser.java
+++ b/java/com/google/gerrit/server/util/git/SubmoduleSectionParser.java
@@ -43,20 +43,20 @@
  */
 public class SubmoduleSectionParser {
 
-  private final Config bbc;
+  private final Config config;
   private final String canonicalWebUrl;
   private final Branch.NameKey superProjectBranch;
 
   public SubmoduleSectionParser(
-      Config bbc, String canonicalWebUrl, Branch.NameKey superProjectBranch) {
-    this.bbc = bbc;
+      Config config, String canonicalWebUrl, Branch.NameKey superProjectBranch) {
+    this.config = config;
     this.canonicalWebUrl = canonicalWebUrl;
     this.superProjectBranch = superProjectBranch;
   }
 
   public Set<SubmoduleSubscription> parseAllSections() {
     Set<SubmoduleSubscription> parsedSubscriptions = new HashSet<>();
-    for (String id : bbc.getSubsections("submodule")) {
+    for (String id : config.getSubsections("submodule")) {
       final SubmoduleSubscription subscription = parse(id);
       if (subscription != null) {
         parsedSubscriptions.add(subscription);
@@ -66,9 +66,9 @@
   }
 
   private SubmoduleSubscription parse(String id) {
-    final String url = bbc.getString("submodule", id, "url");
-    final String path = bbc.getString("submodule", id, "path");
-    String branch = bbc.getString("submodule", id, "branch");
+    final String url = config.getString("submodule", id, "url");
+    final String path = config.getString("submodule", id, "path");
+    String branch = config.getString("submodule", id, "branch");
 
     try {
       if (url != null