Fix invalid capture group check

All regex:es has an implicit capture group, the whole pattern,
so check for two when we mean a specific capture group.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/main.rs b/src/main.rs
index 6acee28..d9e2c6e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -75,7 +75,7 @@ fn load_config(path: &PathBuf) -> anyhow::Result<Config> {
         let mut patterns_regex = Vec::with_capacity(patterns_str.len());
         for pattern in patterns_str {
             let regex = RegexBuilder::new(pattern).size_limit(42_000).build()?;
-            if regex.captures_len() != 1 {
+            if regex.captures_len() != 2 {
                 return Err(anyhow!(
                     "Invalid pattern {}, capture groups are not one",
                     pattern