Set limit when splitting key/value using =

Author: milanmajchrak

dspace-api/src/main/java/org/dspace/authenticate/clarin/Headers.java

@@ -82,7 +82,7 @@ public void initialise(String shibHeaders, String header_separator) {
         for (String line : shibHeaders.split("\n")) {
             String key = " ";
             try {
-                String key_value[] = line.split("=");
+                String key_value[] = line.split("=", 2);
                 key = key_value[0].trim();
                 headers_.put(key, List.of(key_value[1]));
             } catch (Exception ignore) {