bug#23153: [PATCH]: For FIXME in cp.c

[Paul Eggert]

On 04/04/2016 09:30 AM, Rishabh Dave wrote:
+  char *suffix_from_env;
    size_t ssize;
    bool simple = true;
  
+
+  /* If simple_backup_suffix is '~', check environment if we have any there. */
+  if (strcmp(simple_backup_suffix, "~") == 0)
+    if ((suffix_from_env = getenv("SIMPLE_BACKUP_SUFFIX")) != NULL)
+      simple_backup_suffix = xstrdup (suffix_from_env);
+

The usual GNU style is "f (x)" rather than "f(x)" for function calls. 
Also, avoid side effects in an "if"; just have the then-part with a 
local variable "suffix_from_env" and put the subsidary if after that.