From: Paul Zander <negril.nx+gentoo@gmail.com>

fix openjpeg version string

OPENJPEG_VERSION is only set for the bundled copy; the system one exports the
three components separately.

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a9321d0..c038e82 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1609,7 +1609,7 @@ endif()
 
 if(HAVE_OPENJPEG)
   status("    JPEG 2000:" OpenJPEG_FOUND
-      THEN "OpenJPEG (ver ${OPENJPEG_VERSION})"
+      THEN "OpenJPEG (ver ${OPENJPEG_MAJOR_VERSION}.${OPENJPEG_MINOR_VERSION}.${OPENJPEG_BUILD_VERSION})"
       ELSE "build (ver ${OPENJPEG_VERSION})"
   )
 elseif(HAVE_JASPER)