calcurse: Update from 4.1.0 to 4.2.1

packages/calcurse/build.sh

@@ -1,9 +1,10 @@
 TERMUX_PKG_HOMEPAGE=http://calcurse.org/
 TERMUX_PKG_DESCRIPTION="calcurse is a calendar and scheduling application for the command line"
-TERMUX_PKG_VERSION=4.1.0
+TERMUX_PKG_VERSION=4.2.1
 TERMUX_PKG_SRCURL=http://calcurse.org/files/calcurse-${TERMUX_PKG_VERSION}.tar.gz
+TERMUX_PKG_SHA256=9d5db3fa920e82d76e43a08c4bd3554ffdde023385b0f9c37e6f0e99d8d00598
 TERMUX_PKG_DEPENDS="ncurses"
 
 termux_step_pre_configure() {
-    export ac_cv_lib_pthread_pthread_create=yes
-}
+	export ac_cv_lib_pthread_pthread_create=yes
+}