snippet(go): reformat & revise snippets for consistency

go-mode/f

@@ -1,6 +1,6 @@
 # -*- mode: snippet -*-
 # name: func ...(...) ... { ... }
 # --
-func ${1:name}(${2:args})${3: return type} {
+func ${1:name}(${2:args}) ${3:return type}{
     `%`$0
 }

go-mode/fm

@@ -1,6 +1,6 @@
 # -*- mode: snippet -*-
 # name: func (target) name(args) (results) { ... }
 # --
-func (${1:target}) ${2:name}(${3:args})${4: return type} {
+func (${1:target}) ${2:name}(${3:args}) ${4:return type}{
     $0
 }

go-mode/func

@@ -1,6 +1,6 @@
 # -*- mode: snippet -*-
 # name: func ...(...) ... { ... }
 # --
-func ${1:name}(${2:args})${3: return type} {
+func ${1:name}(${2:args}) ${3:return type}{
     `%`$0
 }

go-mode/imp

@@ -1,4 +1,6 @@
 # -*- mode: snippet -*-
 # name: import
 # --
-import ${1:package}$0
+import (
+    ${1:package}$0
+)

go-mode/import

@@ -1,4 +1,6 @@
 # -*- mode: snippet -*-
 # name: import
 # --
-import ${1:package}$0
+import (
+    ${1:package}$0
+)

go-mode/method

@@ -1,6 +1,6 @@
 # -*- mode: snippet -*-
 # name: func (target) name(args) (results) { ... }
 # --
-func (${1:target}) ${2:name}(${3:args})${4: return type} {
+func (${1:target}) ${2:name}(${3:args}) ${4:return type}{
     $0
 }

go-mode/struct

@@ -1,6 +1,6 @@
 # -*- mode: snippet -*-
 # name: type ... struct { ... }
 # --
-type $1 struct {
+type ${1:name} struct {
     `%`$0
 }

go-mode/switch

@@ -3,7 +3,7 @@
 # key: switch
 # uuid: switch
 # --
-switch {
-    case ${1:cond}:
+switch ${1:express}{
+    case ${2:cond}:
          $0
 }

go-mode/type

@@ -0,0 +1,6 @@
+# -*- mode: snippet -*-
+# name: type ... ... { ... }
+# --
+type ${1:name} ${2:struct | interface} {
+    `%`$0
+}