Fix rustfmt

lib/src/nogoods.rs

@@ -85,7 +85,10 @@ impl NoGood {
     /// The parameter _update_ is set to [`true`] if there has been an update and to [`false`] otherwise
     pub fn update_term_vec(&self, term_vec: &[Term], update: &mut bool) -> Vec<Term> {
         *update = false;
-        term_vec.iter().enumerate().map(|(idx,val)|{
+        term_vec
+            .iter()
+            .enumerate()
+            .map(|(idx, val)| {
                 let idx: u32 = idx.try_into().expect(
                     "no-good learner implementation is based on the assumption \
                      that only u32::MAX-many variables are in place",
@@ -102,7 +105,8 @@ impl NoGood {
                 } else {
                     *val
                 }
-	}).collect()
+            })
+            .collect()
     }
 
     /// Given a [NoGood] and another one, conclude a non-conflicting value which can be concluded on basis of the given one.