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-rw-r--r--src/interp/format.boot1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/interp/format.boot b/src/interp/format.boot
index 386a85cc..5f670131 100644
--- a/src/interp/format.boot
+++ b/src/interp/format.boot
@@ -818,6 +818,7 @@ formatUnabbreviatedSig sig ==
[target,:args] := dollarPercentTran sig
target := formatUnabbreviated target
null args => ['"() -> ",:target]
+ args is ['constant] => target
null rest args => [:formatUnabbreviated first args,'" -> ",:target]
args := formatUnabbreviatedTuple args
['"(",:args,'") -> ",:target]