lintcheck toml: explain why tokei is commented out

Author: matthiaskrgr

clippy_dev/lintcheck_crates.toml

@@ -4,6 +4,7 @@ cargo = {name = "cargo", versions = ['0.49.0']}
 iron = {name = "iron", versions = ['0.6.1']}
 ripgrep = {name = "ripgrep", versions = ['12.1.1']}
 xsv = {name = "xsv", versions = ['0.13.0']}
+# commented out because of 173K clippy::match_same_arms msgs in language_type.rs
 #tokei = { name = "tokei", versions = ['12.0.4']}
 rayon = {name = "rayon", versions = ['1.5.0']}
 serde = {name = "serde", versions = ['1.0.118']}