config: sslCrl, use same case as documented

According to documentation it is camelcase:
- Documentation/config-gerrit.txt

Change-Id: If9c7df14dd3f4439b64bed87e626528be8051d89

gerrit-pgm/src/main/java/com/google/gerrit/pgm/http/jetty/JettyServer.java

diff --git a/gerrit-pgm/src/main/java/com/google/gerrit/pgm/http/jetty/JettyServer.java b/gerrit-pgm/src/main/java/com/google/gerrit/pgm/http/jetty/JettyServer.java
index c7606d6..38feeb8 100644
--- a/gerrit-pgm/src/main/java/com/google/gerrit/pgm/http/jetty/JettyServer.java
+++ b/gerrit-pgm/src/main/java/com/google/gerrit/pgm/http/jetty/JettyServer.java
@@ -204,7 +204,7 @@
         if (AuthType.CLIENT_SSL_CERT_LDAP.equals(authType)) {
           ssl.setNeedClientAuth(true);
 
-          Path crl = getFile(cfg, "sslcrl", "etc/crl.pem");
+          Path crl = getFile(cfg, "sslCrl", "etc/crl.pem");
           if (Files.exists(crl)) {
             ssl.setCrlPath(crl.toAbsolutePath().toString());
             ssl.setValidatePeerCerts(true);