Fix minor formatting issue in error messages

The padding for the line numbers in the left margin was being calculated
from the length of the zero indexed line number, but the value being
printed was the one-indexed line number, so the margin would be offset
by a character when an error occurred on a one-indexed line number that
was a power of ten.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/print.rs b/src/print.rs
index b2c2ba8..800a1d5 100644
--- a/src/print.rs
+++ b/src/print.rs
@@ -163,8 +163,8 @@ fn print_source_issue(message: &str, context: Context, variant: SourceIssueVaria
 
     // Prepare variables.
     let location = &context.source.in_merged;
-    let digits = location.start.line.to_string().len();
     let y = location.start.line + 1;
+    let digits = y.to_string().len();
     let arrow = "-->";
     let space = " ";