libfmt: switch to github codeload

Signed-off-by: Othmar Truniger <github@truniger.ch>

libs/libfmt/Makefile

@@ -9,14 +9,13 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libfmt
 PKG_VERSION:=5.2.1
-PKG_RELEASE:=1
-
-PKG_SOURCE_PROTO:=git
-PKG_SOURCE_URL:=https://github.com/fmtlib/fmt.git
-PKG_SOURCE_VERSION:=$(PKG_VERSION)
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_MIRROR_HASH:=52feda4b03bacc3d8540ec36462795c31f11a738045e0ea94717efc608246b81
+PKG_RELEASE:=2
+
+PKG_SOURCE_NAME:=fmt
+PKG_SOURCE:=$(PKG_SOURCE_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://codeload.github.com/fmtlib/$(PKG_SOURCE_NAME)/tar.gz/$(PKG_VERSION)?
+PKG_HASH:=3c812a18e9f72a88631ab4732a97ce9ef5bcbefb3235e9fd465f059ba204359b
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_SOURCE_NAME)-$(PKG_VERSION)
 
 PKG_MAINTAINER:=Othmar Truniger <github@truniger.ch>
 PKG_LICENSE:=BSD-2-Clause