-/* Resize frame F's windows when F's width or height is set to SIZE.
- If HORFLAG is zero, F's width was set to SIZE, otherwise its height
- was set. SIZE is interpreted in F's canonical character units
- (a.k.a. "columns" or "lines"), unless PIXELWISE is non-zero, which
- means to interpret SIZE in pixel units. */
+/* Resize frame F's windows when number of lines of F is set to SIZE.
+ HORFLAG means resize windows when number of columns of F is set to
+ SIZE. PIXELWISE means to interpret SIZE as pixels. */