diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index db1acf1..68a783d 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -22,7 +22,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@f6164bd8c8acb4a71fb2791a8b6c4024ff038dab # v2
       with:
-        go-version: 1.18
+        go-version: 1.19
 
     - name: Setup Ruby
       uses: ruby/setup-ruby@ebaea52cb20fea395b0904125276395e37183dac
diff --git a/LICENSE b/LICENSE
index 50aa5d9..533a79d 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2013-2021 Junegunn Choi
+Copyright (c) 2013-2022 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/src/ansi.go b/src/ansi.go
index 698bf89..543dabf 100644
--- a/src/ansi.go
+++ b/src/ansi.go
@@ -126,7 +126,6 @@ func isCtrlSeqStart(c uint8) bool {
 // calling FindStringIndex() on the below regex (which was originally used):
 //
 // "(?:\x1b[\\[()][0-9;?]*[a-zA-Z@]|\x1b][0-9];[[:print:]]+(?:\x1b\\\\|\x07)|\x1b.|[\x0e\x0f]|.\x08)"
-//
 func nextAnsiEscapeSequence(s string) (int, int) {
 	// fast check for ANSI escape sequences
 	i := 0
diff --git a/src/ansi_test.go b/src/ansi_test.go
index cdccc10..781c0a1 100644
--- a/src/ansi_test.go
+++ b/src/ansi_test.go
@@ -15,13 +15,13 @@ import (
 // testing nextAnsiEscapeSequence().
 //
 // References:
-// 	- https://github.com/gnachman/iTerm2
-// 	- https://web.archive.org/web/20090204053813/http://ascii-table.com/ansi-escape-sequences.php
-//      (archived from http://ascii-table.com/ansi-escape-sequences.php)
-// 	- https://web.archive.org/web/20090227051140/http://ascii-table.com/ansi-escape-sequences-vt-100.php
-//      (archived from http://ascii-table.com/ansi-escape-sequences-vt-100.php)
-// 	- http://tldp.org/HOWTO/Bash-Prompt-HOWTO/x405.html
-// 	- https://invisible-island.net/xterm/ctlseqs/ctlseqs.html
+//   - https://github.com/gnachman/iTerm2
+//   - https://web.archive.org/web/20090204053813/http://ascii-table.com/ansi-escape-sequences.php
+//     (archived from http://ascii-table.com/ansi-escape-sequences.php)
+//   - https://web.archive.org/web/20090227051140/http://ascii-table.com/ansi-escape-sequences-vt-100.php
+//     (archived from http://ascii-table.com/ansi-escape-sequences-vt-100.php)
+//   - http://tldp.org/HOWTO/Bash-Prompt-HOWTO/x405.html
+//   - https://invisible-island.net/xterm/ctlseqs/ctlseqs.html
 var ansiRegexReference = regexp.MustCompile("(?:\x1b[\\[()][0-9;]*[a-zA-Z@]|\x1b][0-9];[[:print:]]+(?:\x1b\\\\|\x07)|\x1b.|[\x0e\x0f]|.\x08)")
 
 func testParserReference(t testing.TB, str string) {
diff --git a/src/core.go b/src/core.go
index b4bccfb..ee55f1e 100644
--- a/src/core.go
+++ b/src/core.go
@@ -1,28 +1,4 @@
-/*
-Package fzf implements fzf, a command-line fuzzy finder.
-
-The MIT License (MIT)
-
-Copyright (c) 2013-2021 Junegunn Choi
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
+// Package fzf implements fzf, a command-line fuzzy finder.
 package fzf
 
 import (
diff --git a/src/terminal.go b/src/terminal.go
index bce7137..981f13a 100644
--- a/src/terminal.go
+++ b/src/terminal.go
@@ -25,14 +25,14 @@ import (
 // import "github.com/pkg/profile"
 
 /*
-	Placeholder regex is used to extract placeholders from fzf's template
-	strings. Acts as input validation for parsePlaceholder function.
-	Describes the syntax, but it is fairly lenient.
+Placeholder regex is used to extract placeholders from fzf's template
+strings. Acts as input validation for parsePlaceholder function.
+Describes the syntax, but it is fairly lenient.
 
-	The following pseudo regex has been reverse engineered from the
-	implementation. It is overly strict, but better describes whats possible.
-	As such it is not useful for validation, but rather to generate test
-	cases for example.
+The following pseudo regex has been reverse engineered from the
+implementation. It is overly strict, but better describes whats possible.
+As such it is not useful for validation, but rather to generate test
+cases for example.
 
 	\\?(?:                                      # escaped type
 	    {\+?s?f?RANGE(?:,RANGE)*}               # token type
diff --git a/src/terminal_test.go b/src/terminal_test.go
index ee19b67..ebb6bda 100644
--- a/src/terminal_test.go
+++ b/src/terminal_test.go
@@ -421,10 +421,10 @@ func TestPowershellCommands(t *testing.T) {
 }
 
 /*
-	Test typical valid placeholders and parsing of them.
+Test typical valid placeholders and parsing of them.
 
-	Also since the parser assumes the input is matched with `placeholder` regex,
-	the regex is tested here as well.
+Also since the parser assumes the input is matched with `placeholder` regex,
+the regex is tested here as well.
 */
 func TestParsePlaceholder(t *testing.T) {
 	// give, want pairs