replace stdint.h with cstdint

The former is deprecated by C++14. The standard says they are the same:

The header defines all types and macros the same as the C standard library
header<stdint.h>.

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

src/lib/alsa/PeriodBuffer.hxx

@@ -24,8 +24,7 @@
 
 #include <algorithm>
 #include <cassert>
-
-#include <stdint.h>
+#include <cstdint>
 
 namespace Alsa {
 

src/lib/alsa/Version.hxx

@@ -22,7 +22,7 @@
 
 #include "util/Compiler.h"
 
-#include <stdint.h>
+#include <cstdint>
 
 static constexpr uint_least32_t
 MakeAlsaVersion(uint_least32_t major, uint_least32_t minor,

src/lib/chromaprint/DecoderClient.hxx

@@ -24,11 +24,10 @@
 #include "decoder/Client.hxx"
 #include "thread/Mutex.hxx"
 
+#include <cstdint>
 #include <exception>
 #include <memory>
 
-#include <stdint.h>
-
 class PcmConvert;
 
 class ChromaprintDecoderClient : public DecoderClient {

src/lib/crypto/MD5.hxx

@@ -34,8 +34,7 @@
 #include "util/Compiler.h"
 
 #include <array>
-
-#include <stdint.h>
+#include <cstdint>
 
 template<typename T> struct ConstBuffer;
 

src/lib/ffmpeg/Time.hxx

@@ -29,8 +29,7 @@ extern "C" {
 }
 
 #include <cassert>
-
-#include <stdint.h>
+#include <cstdint>
 
 /* suppress the ffmpeg compatibility macro */
 #ifdef SampleFormat

src/lib/gcrypt/MD5.hxx

@@ -34,8 +34,7 @@
 #include "util/Compiler.h"
 
 #include <array>
-
-#include <stdint.h>
+#include <cstdint>
 
 template<typename T> struct ConstBuffer;
 

src/lib/nfs/FileReader.hxx

@@ -26,10 +26,10 @@
 #include "util/Compiler.h"
 
 #include <cstddef>
+#include <cstdint>
 #include <exception>
 #include <string>
 
-#include <stdint.h>
 #include <sys/stat.h>
 
 struct nfsfh;

src/lib/xiph/OggPage.hxx

@@ -23,9 +23,9 @@
 #include <ogg/ogg.h>
 
 #include <cassert>
+#include <cstdint>
 
 #include <string.h>
-#include <stdint.h>
 
 static size_t
 ReadPage(const ogg_page &page, void *_buffer, size_t size) noexcept

src/lib/xiph/OggStreamState.hxx

@@ -23,9 +23,9 @@
 #include <ogg/ogg.h>
 
 #include <cassert>
+#include <cstdint>
 
 #include <string.h>
-#include <stdint.h>
 
 class OggStreamState {
 	ogg_stream_state state;

src/lib/xiph/OggSyncState.hxx

@@ -23,8 +23,7 @@
 #include <ogg/ogg.h>
 
 #include <cstddef>
-
-#include <stdint.h>
+#include <cstdint>
 
 class Reader;