Fixed linter deprecations

.golangci.yml

@@ -72,10 +72,9 @@ linters-settings:
     # default is false: such cases aren't reported by default.
     check-blank: false
 
-    # [deprecated] comma-separated list of pairs of the form pkg:regex
-    # the regex is used to ignore names within pkg. (default "fmt:.*").
-    # see https://github.com/kisielk/errcheck#the-deprecated-method for details
-    ignore: fmt:.*,io/ioutil:^Read.*
+    # path to a file containing a list of functions to exclude from checking
+    # see https://github.com/kisielk/errcheck#excluding-functions for details
+    exclude-functions: fmt:.*,io/ioutil:^Read.*
 
     # path to a file containing a list of functions to exclude from checking
     # see https://github.com/kisielk/errcheck#excluding-functions for details
@@ -283,7 +282,9 @@ linters-settings:
 
 linters:
   enable:
-    - megacheck
+    - gosimple
+    - staticcheck
+    - unused
     - govet
     - gofmt
     - gosec
@@ -336,7 +337,7 @@ linters:
     - gochecknoglobals # this project uses some globals
     - godot # some comments do not end in a period
     - godox # finds all the HACKs
-    - goerr113 # requires a lot of fixes for errors with wrapping
+    - err113 # requires a lot of fixes for errors with wrapping
     - gomnd # we have too many raw numbers that are not magic
     - gomoddirectives # we use replace as needed
     - nilnil # we do not conform to this