1 files changed, 31 insertions, 21 deletions

diff --git a/share/zoneinfo/yearistype.sh b/share/zoneinfo/yearistype.sh
index 809f5492a1e3..62d6365ecd9d 100755
--- a/share/zoneinfo/yearistype.sh
+++ b/share/zoneinfo/yearistype.sh
@@ -1,26 +1,36 @@
 #! /bin/sh
 
-: '@(#)yearistype.sh	7.4'
+: '@(#)yearistype.sh	7.6'
+
+case $#-$1 in
+	2-|2-0*|2-*[!0-9]*)
+		echo "$0: wild year - $1" >&2
+		exit 1 ;;
+esac
 
 case $#-$2 in
-	2-even)		case $1 in
-				*[24680])			exit 0 ;;
-				*)				exit 1 ;;
-			esac ;;
-	2-nonpres)	case $1 in
-				*[02468][048]|*[13579][26])	exit 1 ;;
-				*)				exit 0 ;;
-			esac ;;
-	2-odd)		case $1 in
-				*[13579])			exit 0 ;;
-				*)				exit 1 ;;
-			esac ;;
-	2-uspres)	case $1 in
-				*[02468][048]|*[13579][26])	exit 0 ;;
-				*)				exit 1 ;;
-			esac ;;
-	2-*)		echo "$0: wild type - $2" >&2
-			exit 1 ;;
-	*)		echo "$0: usage is $0 year type" >&2
-			exit 1 ;;
+	2-even)	
+		case $1 in
+			*[24680])			exit 0 ;;
+			*)				exit 1 ;;
+		esac ;;
+	2-nonpres|2-nonuspres)
+		case $1 in
+			*[02468][048]|*[13579][26])	exit 1 ;;
+			*)				exit 0 ;;
+		esac ;;
+	2-odd)	
+		case $1 in
+			*[13579])			exit 0 ;;
+			*)				exit 1 ;;
+		esac ;;
+	2-uspres)
+		case $1 in
+			*[02468][048]|*[13579][26])	exit 0 ;;
+			*)				exit 1 ;;
+		esac ;;
+	2-*)	
+		echo "$0: wild type - $2" >&2 ;;
 esac
+
+echo "$0: usage is $0 year even|odd|uspres|nonpres|nonuspres" >&2