I attached a patch, hoping is OK. I tested it, and it works fine.
Index: dovecot-2.1.7/doc/example-config/Makefile.in =================================================================== --- dovecot-2.1.7.orig/doc/example-config/Makefile.in 2012-05-29 19:04:48.000000000 +0100 +++ dovecot-2.1.7/doc/example-config/Makefile.in 2013-01-26 15:39:38.000257535 +0000 @@ -296,7 +296,7 @@ SUBDIRS = conf.d pkgsysconfdir = $(sysconfdir)/dovecot nodist_pkgsysconf_DATA = README -exampledir = $(docdir)/example-config +exampledir = $(docdir)/dovecot-core/example-config example_DATA = \ dovecot.conf \ dovecot-db.conf.ext \
