Start testing with Go 1.19

Applies Go 1.19 formatting to docblocks.

.github/workflows/build.yml

@@ -7,7 +7,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v3
         with:
-          go-version: 1.18.x
+          go-version: 1.19.x
 
       - name: Install tools
         run: |
@@ -36,7 +36,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go: ['1.17', '1.18']
+        go: ['1.17', '1.18', '1.19']
     name: test @ Go ${{ matrix.go }}
     runs-on: ubuntu-latest
     steps:

amount.go

@@ -233,10 +233,9 @@ func (a Amount) RoundTo(digits uint8, mode RoundingMode) Amount {
 
 // Cmp compares a and b and returns:
 //
-//   -1 if a <  b
-//    0 if a == b
-//   +1 if a >  b
-//
+//	-1 if a <  b
+//	0 if a == b
+//	+1 if a >  b
 func (a Amount) Cmp(b Amount) (int, error) {
 	if a.currencyCode != b.currencyCode {
 		return -1, MismatchError{a, b}

locale.go

@@ -78,11 +78,11 @@ func (l Locale) IsEmpty() bool {
 // GetParent returns the parent locale for l.
 //
 //	Order:
-// 	1. Language - Script - Territory (e.g. "sr-Cyrl-RS")
-// 	2. Language - Script (e.g. "sr-Cyrl")
-// 	3. Language (e.g. "sr")
-// 	4. English ("en")
-// 	5. Empty locale ("")
+//	1. Language - Script - Territory (e.g. "sr-Cyrl-RS")
+//	2. Language - Script (e.g. "sr-Cyrl")
+//	3. Language (e.g. "sr")
+//	4. English ("en")
+//	5. Empty locale ("")
 //
 // Note that according to CLDR rules, certain locales have special parents.
 // For example, the parent for "es-AR" is "es-419", and for "sr-Latn" it is "en".