Fix a decision bug with trailing stuff in lib.c:is_valid_number

after dec 18 changes. updated FIXES, adjusted version date.

FIXES

@@ -25,6 +25,10 @@ THIS SOFTWARE.
 This file lists all bug fixes, changes, etc., made since the AWK book
 was sent to the printers in August, 1987.
 
+January 06, 2021:
+	Fix a decision bug with trailing stuff in lib.c:is_valid_number
+	after recent changes. Thanks to Ozan Yigit.
+
 December 18, 2020:
 	Fix problems converting inf and NaN values in lib.c:is_valid_number.
 	Enhance number to string conversion to do the right thing for

lib.c

@@ -822,10 +822,17 @@ convert:
 	if (result != NULL)
 		*result = r;
 
-	retval = (isspace(*ep) || *ep == '\0' || trailing_stuff_ok);
+	/*
+	 * check for trailing stuff
+	 */
+	while (isspace(*ep))
+		ep++;
 
 	if (no_trailing != NULL)
 		*no_trailing = (*ep == '\0');
 
+        // return true if found the end, or trailing stuff is allowed
+	retval = *ep == '\0' || trailing_stuff_ok;
+
 	return retval;
 }

main.c

@@ -22,7 +22,7 @@ ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
 THIS SOFTWARE.
 ****************************************************************/
 
-const char	*version = "version 20201218";
+const char	*version = "version 20210106";
 
 #define DEBUG
 #include <stdio.h>