Update version to 3.12.0

lapack-netlib/INSTALL/ilaver.f

@@ -44,7 +44,6 @@
 *> \author Univ. of Colorado Denver
 *> \author NAG Ltd.
 *
-*> \date November 2019
 *
 *> \ingroup auxOTHERauxiliary
 *
@@ -60,7 +59,7 @@
       INTEGER VERS_MAJOR, VERS_MINOR, VERS_PATCH
 *  =====================================================================
       VERS_MAJOR = 3
-      VERS_MINOR = 11
+      VERS_MINOR = 12
       VERS_PATCH = 0
 *  =====================================================================
 *