Remove FreeBSD special case inside getAvailableDiskSpace

Author: n8sh

std/file.d

@@ -5151,32 +5151,16 @@ ulong getAvailableDiskSpace(scope const(char)[] path) @safe
     }
     else version (Posix)
     {
-        import std.string : toStringz;
+        import core.sys.posix.sys.statvfs : statvfs, statvfs_t;
+        import std.internal.cstring : tempCString;
 
-        version (FreeBSD)
-        {
-            import core.sys.posix.sys.statvfs : statfs, statfs_t;
-
-            statfs_t stats;
-            auto err = () @trusted {
-                return statfs(path.toStringz(), &stats);
-            } ();
-            cenforce(err == 0, "Cannot get available disk space");
-
-            return stats.f_bavail * stats.f_bsize;
-        }
-        else
-        {
-            import core.sys.posix.sys.statvfs : statvfs, statvfs_t;
-
-            statvfs_t stats;
-            auto err = () @trusted {
-                return statvfs(path.toStringz(), &stats);
-            } ();
-            cenforce(err == 0, "Cannot get available disk space");
+        statvfs_t stats;
+        auto err = () @trusted {
+            return statvfs(path.tempCString(), &stats);
+        } ();
+        cenforce(err == 0, "Cannot get available disk space");
 
-            return stats.f_bavail * stats.f_frsize;
-        }
+        return stats.f_bavail * stats.f_frsize;
     }
     else static assert(0, "Unsupported platform");
 }