only the 1st variable is evaluated in cli_h1

[fmichonneau]

Compare the output of cli_h1 and cli_h2.

var1 <- "var 1"
var2 <- "var 2"
cli::cli_h1("{var1} {var2} {nrow(mtcars)}")
#> 
#> ── ── var 1 ────────────────────────────────────────────────────────────────────
cli::cli_h2("{var1} {var2} {nrow(mtcars)}")
#> 
#> ── ── var 1 ── ── var 2 ── ── 32 ── ──
#> 

^{Created on 2021-02-08 by the reprex package (v1.0.0)}

[gaborcsardi]

The spaces in the lines are also weird.