pkgs/misc: add Merge function (MR 22)

For keys/values from one dict into another

pkgs/misc/misc.go

@@ -1,4 +1,4 @@
-// Copyright 2021 Clayton Craft <clayton@craftyguy.net>
+// Copyright 2022 Clayton Craft <clayton@craftyguy.net>
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 package misc
@@ -48,3 +48,11 @@ func FreeSpace(path string) (uint64, error) {
 	size := stat.Bavail * uint64(stat.Bsize)
 	return size, nil
 }
+
+// Merge the contents of "b" into "a", overwriting any previously existing keys
+// in "a"
+func Merge(a map[string]string, b map[string]string) {
+	for k, v := range b {
+		a[k] = v
+	}
+}