Update RSPEC

rules/S1751/rust/metadata.json

@@ -1,2 +1,7 @@
 {
-}
+  "tags": [
+    "confusing",
+    "bad-practice",
+    "clippy"
+  ]
+}

rules/S1751/rust/rule.adoc

@@ -1,44 +1,34 @@
-FIXME: add a description
-
-// If you want to factorize the description uncomment the following line and create the file.
-//include::../description.adoc[]
-
 == Why is this an issue?
 
-FIXME: remove the unused optional headers (that are commented out)
+include::../description.adoc[]
 
-//=== What is the potential impact?
-
-== How to fix it
-//== How to fix it in FRAMEWORK NAME
-
-=== Code examples
-
-==== Noncompliant code example
+=== Noncompliant code example
 
 [source,rust,diff-id=1,diff-type=noncompliant]
 ----
-FIXME
+let mut x = 0;
+loop {
+    x += 1;
+    if x == 1 {
+        return;
+    }
+    break;
+}
 ----
 
-==== Compliant solution
+=== Compliant solution
 
 [source,rust,diff-id=1,diff-type=compliant]
 ----
-FIXME
+let mut x = 0;
+x += 1;
+if x == 1 {
+    return;
+}
 ----
 
-//=== How does this work?
+== Resources
 
-//=== Pitfalls
+=== Documentation
 
-//=== Going the extra mile
-
-
-//== Resources
-//=== Documentation
-//=== Articles & blog posts
-//=== Conference presentations
-//=== Standards
-//=== External coding guidelines
-//=== Benchmarks
+* Clippy Lints - https://rust-lang.github.io/rust-clippy/master/index.html#never_loop