Formatter changes for revisions 6977:6978

Replacement of call to Citation.getTitle(Locale) by call to Citation.getTitle().toString(Locale). This change was forced by a change in GeoAPI interfaces. Reverting this change cause compilation errors, which can be fixed only by redoing the exact same change.

Command line:

svn diff --extensions "--unified --ignore-space-change --ignore-all-space --ignore-eol-style" -r6977:6978 https://svn.osgeo.org/geotools/trunk/modules/library/referencing/src/main/java/org/geotools/referencing/wkt/Formatter.java
Revision 6977Revision 6978
if (identifier != null) {
    final Citation authority = identifier.getAuthority();
    if (authority != null) {
        final String title = authority.getTitle(locale);
        if (title != null) {
            buffer.append(SEPARATOR);
            buffer.append(SPACE);
 
if (identifier != null) {
    final Citation authority = identifier.getAuthority();
    if (authority != null) {
        final String title = authority.getTitle().toString();
        if (title != null) {
            buffer.append(SEPARATOR);
            buffer.append(SPACE);