lib/suitar: reject names ending in "/." or "/.."

doc/spec/suitar-spec.md

diff --git a/doc/spec/suitar-spec.md b/doc/spec/suitar-spec.md
index 1dca893..0a8525a 100644
--- a/doc/spec/suitar-spec.md
+++ b/doc/spec/suitar-spec.md
@@ -86,7 +86,8 @@
 - Names must not contain the `'\x7F'` ASCII DEL byte.
 - Names must be no longer than 4095 bytes, excluding a trailing NUL.
 - Names must not be `""`, `"."` or `".."`.
-- Names must not start or end with `"/"`, `"./"` or `"../"`.
+- Names must not start with `"/"`, `"./"` or `"../"`.
+- Names must not end with `"/"`, `"/."` or `"/.."`.
 - Names must not contain `"//"`, `"/./"` or `"/../"` as substrings.
 
 For example, when converting from ZIP (with Japanese file names) to SUITAR, it

lib/suitar/suitar.go

diff --git a/lib/suitar/suitar.go b/lib/suitar/suitar.go
index 3a6212c..27ec692 100644
--- a/lib/suitar/suitar.go
+++ b/lib/suitar/suitar.go
@@ -113,6 +113,8 @@
 		(name[len(name)-1] != '/') &&
 		!strings.HasPrefix(name, "./") &&
 		!strings.HasPrefix(name, "../") &&
+		!strings.HasSuffix(name, "/.") &&
+		!strings.HasSuffix(name, "/..") &&
 		!strings.Contains(name, "//") &&
 		!strings.Contains(name, "/./") &&
 		!strings.Contains(name, "/../") &&
@@ -208,9 +210,9 @@
 	}
 
 	// Check the mode bits.
-	if (b[0x0068] == '6') && (b[0x0069] == '4') && (b[0x006A] == '4') {
+	if (b[0x068] == '6') && (b[0x069] == '4') && (b[0x06A] == '4') {
 		// No-op.
-	} else if (b[0x0068] == '7') && (b[0x0069] == '5') && (b[0x006A] == '5') && (which == 1) {
+	} else if (b[0x068] == '7') && (b[0x069] == '5') && (b[0x06A] == '5') && (which == 1) {
 		// No-op.
 	} else {
 		return false