output: capitalize State

* src/print.c (print_state): Here.
* tests/conflicts.at, tests/existing.at, tests/local.at, tests/reduce.at,
tests/regression.at, tests/sets.at: Adjust.

tests/sets.at

@@ -287,7 +287,7 @@ mv stdout expout
 
 # Get the final state in the report, from the "accept" action..
 AT_CHECK([sed -n '
-           /^state \(.*\)/{
+           /^State \(.*\)/{
 	     s//final state \1/
 	     x
 	   }