misc minor edits.

- pass string size to BLI_timestr() to avoid possible buffer overrun.
- quiet warning for mingw.
- include guards for windows utf conversion funcs.
- fix for mistage in edge-angle-selection check.
- some style cleanup.

intern/utfconv/utf_winfunc.c

@@ -34,7 +34,7 @@
 #include <wchar.h>
 
 
-FILE * ufopen(const char * filename, const char * mode)
+FILE *ufopen(const char *filename, const char *mode)
 {
 	FILE *f = NULL;
 	UTF16_ENCODE(filename);
@@ -120,7 +120,7 @@ int umkdir(const char *pathname)
 	return r ? 0 : -1;
 }
 
-char * u_alloc_getenv(const char *varname)
+char *u_alloc_getenv(const char *varname)
 {
 	char * r = 0;
 	wchar_t * str;

intern/utfconv/utf_winfunc.h

@@ -23,21 +23,26 @@
  * ***** END GPL LICENSE BLOCK *****
  */
 
+#ifndef __UTF_WINFUNC_H__
+#define __UTF_WINFUNC_H__
+
 #ifndef WIN32
 #  error "This file can only compile on windows"
 #endif
 
 #include <stdio.h>
 
-FILE * ufopen(const char * filename, const char * mode);
+FILE *ufopen(const char * filename, const char * mode);
 int uopen(const char *filename, int oflag, int pmode);
 int uaccess(const char *filename, int mode);
-int urename(const char *oldname, const char *newname );
+int urename(const char *oldname, const char *newname);
 
-char * u_alloc_getenv(const char *varname);
+char *u_alloc_getenv(const char *varname);
 void  u_free_getenv(char *val);
 
-int uput_getenv(const char *varname, char * value, size_t buffsize);
+int uput_getenv(const char *varname, char *value, size_t buffsize);
 int uputenv(const char *name, const char *value);
 
 int umkdir(const char *pathname);
+
+#endif  /* __UTF_WINFUNC_H__ */

intern/utfconv/utfconv.h

@@ -23,6 +23,9 @@
  * ***** END GPL LICENSE BLOCK *****
  */
 
+#ifndef __UTFCONV_H__
+#define __UTFCONV_H__
+
 #include <wchar.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -98,3 +101,5 @@ wchar_t *alloc_utf16_from_8(const char *in8, size_t add);
 #ifdef __cplusplus 
 }
 #endif
+
+#endif  /* __UTFCONV_H__ */