* strncpy() refactor/fix

src/helpers/TxtDataHelpers.cpp

@@ -0,0 +1,9 @@
+#include "TxtDataHelpers.h"
+
+void StrHelper::strncpy(char* dest, const char* src, size_t buf_sz) {
+  while (buf_sz > 1 && *src) {
+    *dest++ = *src++;
+    buf_sz--;
+  }
+  *dest = 0;  // truncates if needed
+}