Update to bibtex2html 1.90. This brings the following changes:

- bib2bib: = and <> are now case insensitive; use == and != instead
   to perform case sensitive comparison.
 - Correctly support $x$$y$ where the central $$ is not passing into
   display math mode.
 - More cases for accent macros \' \~ \. \u \v (patch by John Kewley).

textproc/bibtex2html/Makefile

@@ -6,7 +6,7 @@
 #
 
 PORTNAME=	bibtex2html
-PORTVERSION=	1.89
+PORTVERSION=	1.90
 CATEGORIES=	textproc print
 MASTER_SITES=	http://www.lri.fr/~filliatr/ftp/bibtex2html/
 

textproc/bibtex2html/distinfo

@@ -1,3 +1,3 @@
-MD5 (bibtex2html-1.89.tar.gz) = 7ea8e35ec0a6d0e95a5fb78a324e57f0
-SHA256 (bibtex2html-1.89.tar.gz) = 30ca46c107c8649606aa676aafa2fe5ba5c0c8edac231cc03597e2897b772e3d
-SIZE (bibtex2html-1.89.tar.gz) = 68203
+MD5 (bibtex2html-1.90.tar.gz) = 9d38b47b07b3698c440debc1fe60d8e2
+SHA256 (bibtex2html-1.90.tar.gz) = f8bb29057fc696c21dc7fcc263c1e997bfa77066524f29492020dd8bf4407543
+SIZE (bibtex2html-1.90.tar.gz) = 69089