user/mksh: Update to 59b

user/mksh/APKBUILD

 # Contributor: Marek Benc <dusxmt@gmx.com>
 # Maintainer: Marek Benc <dusxmt@gmx.com>
 pkgname=mksh
-pkgver=57
+pkgver=59b
 pkgrel=0
 pkgdesc="MirBSD Korn Shell, a free Korn Shell interpreter"
 url="http://mirbsd.de/mksh"
@@ -47,4 +47,4 @@ package() {
 	install -m 644 dot.mkshrc "$pkgdir"/usr/share/doc/mksh/examples/
 }
 
-sha512sums="7d7fa557c17da4f1f62f82877a136439efb6d4f9fde52b2df39214db09868982e756df6e4fe83498f9013cbcf3252dc383b00ddfafaa4c9f143ffded7cd255b3  mksh-R57.tgz"
+sha512sums="4ae330a79a09d2dd989116b1a836ab7f179d920eb34c97ea5da7d1434361911a93ba77ca47c5e473e5a5ce1877f2a2e919a807bb6139ec6c89c87969054d021d  mksh-R59b.tgz"