cl-all '(format T "~,3f" 0.5625d0)'
 --> ABCL:       0.563
 --> Allegro:    0.562
 --> CCL:        0.562
 --> CLisp:      0.562
 --> CMUCL:      0.563
 --> ECL:        0.563
 --> SBCL:       0.563