Поправил кучку недостатков в neovim

nvim/snippets/go.json

@@ -16,8 +16,13 @@
 		"prefix": "construct"
 	},
 	"if err := ...; err != nil": {
-		"prefix": "iferr",
+		"prefix": "iferrr",
 		"body": "if err := ${1}; err != nil {\n\t${2:return ${3:nil, }${4:err}}\n}",
 		"description": "Snippet for if err := ...; err != nil"
+	},
+	"if err != nil": {
+		"prefix": "iferr",
+		"body": "if err != nil {\n\t${1:return ${2:nil, }${3:err}}\n}",
+		"description": "Snippet for if err != nil"
 	}
 }