style: replace em and en dashes across sources

format/format.go

@@ -1,7 +1,7 @@
 // Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
 // SPDX-License-Identifier: BSD-3-Clause
 
-// Package format implements a canonical formatter for GAsm source — the
+// Package format implements a canonical formatter for GAsm source, the
 // equivalent of gofmt for Plan 9 assembly.  It works on the token stream
 // rather than the AST so that every line (including comments and blanks) is
 // preserved; it only normalises indentation, operand spacing and per-function
@@ -92,7 +92,7 @@ func Source(src string) string {
 		case kInstr:
 			out = renderInstr(line, maxWidth[inf.funcID])
 			// A RET ends the body for indentation purposes: comments that
-			// follow it — typically the next function's doc comment — belong
+			// follow it, typically the next function's doc comment, belong
 			// at column 0, not inside the finished function.
 			if strings.EqualFold(line[0].Text, "RET") {
 				inBody = false
@@ -120,8 +120,8 @@ type outLine struct {
 }
 
 // normalizeSpacing enforces the canonical blank-line layout: runs of blank
-// lines collapse to one, and a new block — a label, or a TEXT or GLOBL
-// directive — is preceded by exactly one blank line.  Comments immediately
+// lines collapse to one, and a new block, a label, or a TEXT or GLOBL
+// directive, is preceded by exactly one blank line.  Comments immediately
 // above a block belong to it, so the blank line is inserted before them.  No
 // blank line is forced at the top of the file, right after a TEXT (the
 // function's first label), or between stacked labels that share an address.