internal/rosa: improve helper bindings

This uses more intuitive names for some arguments and inverts their default value. Slices and nil-capable strings replace skip arguments.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/package/musl/package.az

@@ -23,14 +23,9 @@ package musl-headers {
 	];
 
 	exec = make {
-		omitDefaults = true;
-		skipCheck = true;
-
-		make = [
-			"DESTDIR=/work",
-			"install-headers",
-		];
-
+		defaults = false;
+		make = [ "DESTDIR=/work", "install-headers" ];
+		check = nil;
 		install = "# headers installed during make";
 	};
 
@@ -53,9 +48,8 @@ package musl {
 	];
 
 	exec = make {
-		omitDefaults = true;
-		skipCheck = true;
-
+		defaults = false;
+		check = nil;
 		postInstall = `
 mkdir -p /work/system/bin
 COMPAT_LINKER_NAME="ld-musl-` + linuxArch + `.so.1"