sys-process/task-spooler: quote unquoted variables, add missing || die

simplify patch applying, move S up

Signed-off-by: Andrew Ammerlaan <andrewammerlaan@gentoo.org>

sys-process/task-spooler/task-spooler-1.3.0.ebuild

@@ -8,6 +8,7 @@ inherit cmake
 DESCRIPTION="A scheduler for CPU tasks"
 HOMEPAGE="https://github.com/justanhduc/task-spooler"
 SRC_URI="https://github.com/justanhduc/${PN}/archive/refs/tags/v${PV}-cpu.tar.gz -> ${P}.tar.gz"
+S="${WORKDIR}/task-spooler-${PV}-cpu"
 
 # A GPU version does exist, if anyone needs it, it can be added through a use flag
 
@@ -18,29 +19,21 @@ IUSE="doc"
 DOCS="Changelog OBJECTIVES PORTABILITY PROTOCOL README.md TRICKS"
 HTML_DOCS=( web/index.html web/ts-0.2.1.png web/ts-0.5.4.ebuild web/article_linux_com.html )
 
-S="${WORKDIR}/task-spooler-${PV}-cpu"
-
-src_prepare() {
-	default
-
-	eapply "${FILESDIR}"/var-redefinition.patch
-
-	cmake_src_prepare
-}
+PATCHES=( "${FILESDIR}"/var-redefinition.patch )
 
 src_test() {
-	cp ${BUILD_DIR}/ts ${S}/ || die "failed to copy ts executable to source folder for tests"
+	cp $"{BUILD_DIR}/ts" "${S}"/ || die "failed to copy ts executable to source folder for tests"
 	sh testbench.sh || die "tests failed"
 }
 
 src_install() {
-	cd ${WORKDIR}/${P}-cpu_build
+	cd "${WORKDIR}/${P}-cpu_build" || die
 	mv ts tsp || die "Failed renaming ts executable into tsp"
 	dobin tsp
 
 	# When the use flag doc is enabled.
 	if use doc; then
-		cd ${S}
+		cd "${S}" || die
 		einstalldocs
 	fi
 }