Remove all uses of names starting with underscore

src/os/cpath/cpath.h

@@ -25,8 +25,8 @@ BEGIN_C_LINKAGE
 #error "Unrecognised platform"
 #endif
 
-#define wpCpathDirname(ALLOCATOR, PATH) _dirup(ALLOCATOR, PATH, 1)
-#define wpCpathDirup(ALLOCATOR, PATH, COUNT) _dirup(ALLOCATOR, PATH, COUNT)
+#define wpCpathDirname(ALLOCATOR, PATH) dirUp(ALLOCATOR, PATH, 1)
+#define wpCpathDirUp(ALLOCATOR, PATH, COUNT) dirUp(ALLOCATOR, PATH, COUNT)
 
 typedef enum {
 	WP_CPATH_JOIN_RESULT_SUCCESS = 0,
@@ -36,7 +36,7 @@ typedef enum {
 } WpCpathJoinResult;
 
 WpCpathJoinResult wpCpathJoinPath(WpStr8 *dst, const WpStr8List *parts);
-WpStr8           *_dirup(const WpAllocator *allocator, WpStr8RO *path, u64 levels);
+WpStr8           *dirUp(const WpAllocator *allocator, WpStr8RO *path, u64 levels);
 
 #ifdef WP_PLATFORM_CPP
 END_C_LINKAGE