Switch to HTTPS, rebuild lib that has not seen rebuild since 2013

PKGBUILD

@@ -3,14 +3,14 @@
 
 pkgname=libexif
 pkgver=0.6.21
-pkgrel=2
+pkgrel=3
 pkgdesc="A library to parse an EXIF file and read the data from those tags"
 arch=(i686 x86_64)
 license=('LGPL')
-url="http://sourceforge.net/projects/libexif"
+url="https://sourceforge.net/projects/libexif"
 depends=('glibc')
-source=(http://downloads.sf.net/sourceforge/${pkgname}/${pkgname}-${pkgver}.tar.bz2)
-md5sums=('27339b89850f28c8f1c237f233e05b27')
+source=(https://downloads.sourceforge.net/sourceforge/${pkgname}/${pkgname}-${pkgver}.tar.bz2)
+sha256sums=('16cdaeb62eb3e6dfab2435f7d7bccd2f37438d21c5218ec4e58efa9157d4d41a')
 
 build() {
   cd "${srcdir}/${pkgname}-${pkgver}"