Ports: Add "nyancat" port :^)

This is a cute little program for testing out your terminal's color
support, and it also works pretty well as a general stress test.

Ports/nyancat/nyancat.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+PORT_DIR=nyancat
+fetch() {
+    run_fetch_git "https://github.com/klange/nyancat.git"
+    run_patch serenity-changes.patch -p1
+}
+configure() {
+    echo
+}
+build() {
+    run_make
+}
+install() {
+    run_make_install DESTDIR="$SERENITY_ROOT"/Root
+}
+. ../.port_include.sh

Ports/nyancat/serenity-changes.patch

@@ -0,0 +1,29 @@
+diff --git a/Makefile b/Makefile
+index 1dd50ef..e435044 100644
+--- a/Makefile
++++ b/Makefile
+@@ -33,7 +33,9 @@ distcheck: $(distdir).tar.gz
+ 	@echo "*** Package $(distdir).tar.gz is ready for distribution."
+ 
+ install: all
+-	install src/nyancat /usr/bin/${package}
+-	gzip -9 -c < nyancat.1 > /usr/share/man/man1/nyancat.1.gz
++	mkdir -p ${DESTDIR}/usr/bin
++	install src/nyancat ${DESTDIR}/usr/bin/${package}
++	mkdir -p ${DESTDIR}/usr/share/man/man1
++	gzip -9 -c < nyancat.1 > ${DESTDIR}/usr/share/man/man1/nyancat.1.gz
+ 
+ .PHONY: FORCE all clean check dist distcheck install
+diff --git a/src/nyancat.c b/src/nyancat.c
+index 537225c..f2965c1 100644
+--- a/src/nyancat.c
++++ b/src/nyancat.c
+@@ -901,7 +901,7 @@ int main(int argc, char ** argv) {
+ 			 * The \033[0m prevents the Apple ][ from flipping everything, but
+ 			 * makes the whole nyancat less bright on the vt220
+ 			 */
+-			printf("\033[1;37mYou have nyaned for %0.0f seconds!\033[J\033[0m", diff);
++			printf("\033[1;37mYou have nyaned for %d seconds!\033[J\033[0m", (int)diff);
+ 		}
+ 		/* Reset the last color so that the escape sequences rewrite */
+ 		last = 0;