File fix_upstream_issue348.patch of Package cups-filters.19166

--- filter/foomatic-rip/foomaticrip.c.orig	2019-06-06 15:17:11.000000000 +0200
+++ filter/foomatic-rip/foomaticrip.c	2021-04-15 09:42:20.212339673 +0200
@@ -241,8 +241,8 @@ char * extract_next_option(char *str, ch
     if (!str)
         return NULL;
 
-    /* skip whitespace and commas */
-    while (*p && (isspace(*p) || *p == ',')) p++;
+    /* skip whitespace */
+    while (*p && isspace(*p)) p++;
 
     if (!*p)
         return NULL;
@@ -267,7 +267,7 @@ char * extract_next_option(char *str, ch
     }
     else {
         *key = p;
-        while (*p && *p != ':' && *p != '=' && *p != ' ') p++;
+        while (*p && *p != ':' && *p != '=' && !isspace(*p)) p++;
     }
 
     if (*p != ':' && *p != '=') { /* no value for this option */
@@ -293,7 +293,7 @@ char * extract_next_option(char *str, ch
     }
     else {
         *value = p;
-        while (*p && *p != ' ' && *p != ',') p++;
+        while (*p && !isspace(*p)) p++;
         if (*p == '\0')
             return NULL;
         *p = '\0';
--- filter/foomatic-rip/options.c.orig	2019-06-06 15:17:11.000000000 +0200
+++ filter/foomatic-rip/options.c	2021-04-15 09:45:57.495237990 +0200
@@ -956,6 +956,10 @@ int option_get_command(dstr_t *cmd, opti
         return 1;
     }
 
+    /* Consider "None" as "not set" for enumerated choice options */
+    if (opt->type == TYPE_ENUM && !strcasecmp(valstr, "None"))
+        return 0;
+
     /* Consider "None" as the empty string for string and password options */
     if ((opt->type == TYPE_STRING || opt->type == TYPE_PASSWORD) &&
 	!strcasecmp(valstr, "None"))