修复一处可变参数语法的误用

src/child.c

@@ -24,15 +24,10 @@
 #include "killer.h"
 
 
-void close_file(FILE *fp, ...) {
-    va_list args;
-    va_start(args, fp);
-
+void close_file(FILE *fp) {
     if (fp != NULL) {
         fclose(fp);
     }
-
-    va_end(args);
 }
 
 

src/child.h

@@ -7,7 +7,9 @@
 #define CHILD_ERROR_EXIT(error_code)\
     {\
         LOG_FATAL(log_fp, "Error: System errno: %s; Internal errno: "#error_code, strerror(errno)); \
-        close_file(input_file, output_file, error_file);  \
+        close_file(input_file); \
+        close_file(output_file); \
+        close_file(error_file);  \
         raise(SIGUSR1);  \
         exit(EXIT_FAILURE); \
     }