fix

Co-Authored-By: Lew Rossman <LRossman@outlook.com>

src/epanet.c

@@ -4526,6 +4526,7 @@ int DLLEXPORT EN_loadpatternfile(EN_Project p, const char *filename, const char
 {
     FILE *file;
     char line[MAXLINE+1];
+	char *tok;
     int err = 0;
     int i;
     int len = 0;
@@ -4552,7 +4553,9 @@ int DLLEXPORT EN_loadpatternfile(EN_Project p, const char *filename, const char
     while (fgets(line, sizeof(line), file) != NULL) {
     
         // Skip lines that don't contain valid numbers
-        if (!getfloat(line, &value)) continue;
+        tok = strtok(line, SEPSTR);
+        if (tok == NULL) continue;
+        if (!getfloat(tok, &value)) continue;
         
         // Resize multiplier array if it's full
         if (len % CHUNK == 0) {