mercurial/scmutil.py

--- a/mercurial/scmutil.py	Thu Sep 23 09:38:45 2021 -0700
+++ b/mercurial/scmutil.py	Thu Sep 23 09:40:01 2021 -0700
@@ -1211,9 +1211,9 @@
     try:
         similarity = float(opts.get(b'similarity') or 0)
     except ValueError:
-        raise error.Abort(_(b'similarity must be a number'))
+        raise error.InputError(_(b'similarity must be a number'))
     if similarity < 0 or similarity > 100:
-        raise error.Abort(_(b'similarity must be between 0 and 100'))
+        raise error.InputError(_(b'similarity must be between 0 and 100'))
     similarity /= 100.0
 
     ret = 0