internal/rosa: key-value type

This type is used very frequently. The new type is much easier to type and can receive helper methods eventually if needed.

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

internal/rosa/gnu.go

@@ -351,7 +351,7 @@ func (t Toolchain) newBash() (pkg.Artifact, string) {
 		Flag: TEarly,
 	}, &MakeHelper{
 		Script: "ln -s bash /work/system/bin/sh\n",
-		Configure: [][2]string{
+		Configure: []KV{
 			{"without-bash-malloc"},
 		},
 	}), version
@@ -390,7 +390,7 @@ test_disable 'int main(){return 0;}' gnulib-tests/test-fchownat.c
 test_disable 'int main(){return 0;}' gnulib-tests/test-lchown.c
 `,
 
-		Patches: [][2]string{
+		Patches: []KV{
 			{"tests-fix-job-control", `From 21d287324aa43aa3a31f39619ade0deac7fd6013 Mon Sep 17 00:00:00 2001
 From: =?UTF-8?q?P=C3=A1draig=20Brady?= <P@draigBrady.com>
 Date: Tue, 24 Feb 2026 15:44:41 +0000
@@ -485,7 +485,7 @@ index 9a395416b..fbb043312 100755
 
 		Flag: TEarly,
 	}, &MakeHelper{
-		Configure: [][2]string{
+		Configure: []KV{
 			{"enable-single-binary", "symlinks"},
 		},
 	},
@@ -720,7 +720,7 @@ func (t Toolchain) newTar() (pkg.Artifact, string) {
 		mustDecode(checksum),
 		pkg.TarGzip,
 	), nil, &MakeHelper{
-		Configure: [][2]string{
+		Configure: []KV{
 			{"disable-acl"},
 			{"without-posix-acls"},
 			{"without-xattrs"},
@@ -903,7 +903,7 @@ func (t Toolchain) newGCC() (pkg.Artifact, string) {
 		mustDecode(checksum),
 		pkg.TarGzip,
 	), &PackageAttr{
-		Patches: [][2]string{
+		Patches: []KV{
 			{"musl-off64_t-loff_t", `diff --git a/libgo/sysinfo.c b/libgo/sysinfo.c
 index 180f5c31d74..44d7ea73f7d 100644
 --- a/libgo/sysinfo.c
@@ -1062,7 +1062,7 @@ ln -s system/lib /work/
 		// it also saturates the CPU for a consequential amount of time.
 		Flag: TExclusive,
 	}, &MakeHelper{
-		Configure: [][2]string{
+		Configure: []KV{
 			{"disable-multilib"},
 			{"with-multilib-list", `""`},
 			{"enable-default-pie"},