Fix memory leak by freeing options we allocated

Needs sass/libsass#2213

sassc.c

@@ -291,16 +291,19 @@ int main(int argc, char** argv) {
             break;
         case 'v':
             print_version();
+            sass_delete_options(options);
             return 0;
         case 'h':
             print_usage(argv[0]);
+            sass_delete_options(options);
             return 0;
         case '?':
             /* Unrecognized flag or missing an expected value */
             /* getopt should produce it's own error message for this case */
             invalid_usage(argv[0]);
         default:
             fprintf(stderr, "Unknown error while processing arguments\n");
+            sass_delete_options(options);
             return 2;
         }
     }
@@ -330,5 +333,7 @@ int main(int argc, char** argv) {
         result = compile_stdin(options, outfile);
     }
 
+    sass_delete_options(options);
+
     return result;
 }