main/isl: update layout

main/isl/APKBUILD

@@ -7,7 +7,7 @@ pkgdesc="An Integer Set Library for the Polyhedral Model"
 url="http://freecode.com/projects/isl"
 arch="all"
 license="MIT"
-depends=
+depends=""
 depends_dev="gmp-dev"
 makedepends_host="$depends_dev"
 makedepends="$makedepends_host"
@@ -38,7 +38,6 @@ build() {
 		--localstatedir=/var \
 		--with-sysroot=${CBUILDROOT} \
 		|| return 1
-
 	make || return 1
 }