Fix deprecation warnings about printf() on macOS

The new Xcode 14.1 brings the new Apple Clang compiler which
considers sprintf unsafe and geenrates deprecation warnings
suggesting to sue snprintf instead. This only happens for C++
code by default, and C code can still use sprintf without any
warning.

This changes does the following:

- Whenever is trivial replace sprintf() with BLI_snprintf.
- For all other cases use the newly introduced BLI_sprintf
  which is a wrapper around sprintf() but without warning.

There is a discouragement note in the BLI_sprintf comment to
suggest use of BLI_snprintf when the size is known.

Differential Revision: https://developer.blender.org/D16410

source/blender/python/bmesh/bmesh_py_types.c

@@ -7,6 +7,7 @@
 
 #include "BLI_math.h"
 #include "BLI_sort.h"
+#include "BLI_string.h"
 
 #include "DNA_material_types.h"
 #include "DNA_mesh_types.h"
@@ -4247,16 +4248,16 @@ char *BPy_BMElem_StringFromHType_ex(const char htype, char ret[32])
   /* zero to ensure string is always NULL terminated */
   char *ret_ptr = ret;
   if (htype & BM_VERT) {
-    ret_ptr += sprintf(ret_ptr, "/%s", BPy_BMVert_Type.tp_name);
+    ret_ptr += BLI_sprintf(ret_ptr, "/%s", BPy_BMVert_Type.tp_name);
   }
   if (htype & BM_EDGE) {
-    ret_ptr += sprintf(ret_ptr, "/%s", BPy_BMEdge_Type.tp_name);
+    ret_ptr += BLI_sprintf(ret_ptr, "/%s", BPy_BMEdge_Type.tp_name);
   }
   if (htype & BM_FACE) {
-    ret_ptr += sprintf(ret_ptr, "/%s", BPy_BMFace_Type.tp_name);
+    ret_ptr += BLI_sprintf(ret_ptr, "/%s", BPy_BMFace_Type.tp_name);
   }
   if (htype & BM_LOOP) {
-    ret_ptr += sprintf(ret_ptr, "/%s", BPy_BMLoop_Type.tp_name);
+    ret_ptr += BLI_sprintf(ret_ptr, "/%s", BPy_BMLoop_Type.tp_name);
   }
   ret[0] = '(';
   *ret_ptr++ = ')';

source/blender/python/intern/bpy_rna.c

@@ -993,7 +993,7 @@ static PyObject *pyrna_prop_str(BPy_PropertyRNA *self)
   }
 
   if (len != -1) {
-    sprintf(--c, "[%d]", len);
+    BLI_sprintf(--c, "[%d]", len);
   }
 
   /* If a pointer, try to print name of pointer target too. */