cleanup getopt_long() options

src/main.c

@@ -861,19 +861,19 @@ main(int argc, char **argv)
     for(;;) {
 
         static struct option long_options[] = {
-            {"help", 0, 0, 'h'},
-            {"version", 0, 0, 'v'},
-            {"batch", 0, 0, 'b'},
-            {"autorun", 0, 0, 'a'},
-            {"circuitfile", 1, 0, 'c'},
-            {"interactive", 0, 0, 'i'},
-            {"no-spiceinit", 0, 0, 'n'},
-            {"output", 1, 0, 'o'},
-            {"pipe", 0, 0, 'p'},
-            {"completion", 0, 0, 'q'},
-            {"rawfile", 1, 0, 'r'},
-            {"server", 0, 0, 's'},
-            {"terminal", 1, 0, 't'},
+            {"help",         no_argument,       0, 'h'},
+            {"version",      no_argument,       0, 'v'},
+            {"batch",        no_argument,       0, 'b'},
+            {"autorun",      no_argument,       0, 'a'},
+            {"circuitfile",  required_argument, 0, 'c'},
+            {"interactive",  no_argument,       0, 'i'},
+            {"no-spiceinit", no_argument,       0, 'n'},
+            {"output",       required_argument, 0, 'o'},
+            {"pipe",         no_argument,       0, 'p'},
+            {"completion",   no_argument,       0, 'q'},
+            {"rawfile",      required_argument, 0, 'r'},
+            {"server",       no_argument,       0, 's'},
+            {"terminal",     required_argument, 0, 't'},
             {0, 0, 0, 0}
         };