replace inttypes.h with cinttypes

The former has been deprecated by C++14. They are also the same.

From the standard:

The contents and meaning of the header<cinttypes>are the same as the C
standard library header<inttypes.h>, with the following changes:

-The header<cinttypes>includes the header<cstdint>instead of<stdint.h>,and
—if and only if the typeintmax_tdesignates an extended integer type
 (6.7.1), the following functionsignatures are added:intmax_t
abs(intmax_t);imaxdiv_t div(intmax_t, intmax_t);which shall have the same
semantics as the function signaturesintmax_t imaxabs(intmax_t)andimaxdiv_t
imaxdiv(intmax_t, intmax_t), respectively.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

src/command/FileCommands.cxx

@@ -44,8 +44,7 @@
 #include "Log.hxx"
 
 #include <cassert>
-
-#include <inttypes.h> /* for PRIu64 */
+#include <cinttypes> /* for PRIu64 */
 
 gcc_pure
 static bool

src/command/StorageCommands.cxx

@@ -37,10 +37,9 @@
 #include "TimePrint.hxx"
 #include "IdleFlags.hxx"
 
+#include <cinttypes> /* for PRIu64 */
 #include <memory>
 
-#include <inttypes.h> /* for PRIu64 */
-
 gcc_pure
 static bool
 skip_path(const char *name_utf8) noexcept