Report arguments to .EQ as an error, and simplify the code:

* drop trivial wrapper function roff_openeqn()
* drop unused first arg of function eqn_alloc()
* drop usused member "name" of struct eqn_node
While here, sync to OpenBSD by killing some trailing blanks.

1 files changed, 2 insertions, 0 deletions

diff --git a/mandoc.1 b/mandoc.1
index aa903147..6b192d86 100644
--- a/mandoc.1
+++ b/mandoc.1
@@ -1465,6 +1465,8 @@ or
 .Ic \&PP
 macro, an
 .Xr eqn 7
+.Ic \&EQ
+or
 .Ic \&EN
 macro, or a
 .Xr roff 7