docs([tokio-]postgres/config): fix examples for unix socket paths

The commonly used location for sockets is `/run/{service}`, with
`/var/lib/{service}` containing the actual data from the service.

Author: transcaffeine

postgres/src/config.rs

@@ -92,7 +92,7 @@ use tokio_postgres::{Error, Socket};
 /// ```
 ///
 /// ```not_rust
-/// host=/var/lib/postgresql,localhost port=1234 user=postgres password='password with spaces'
+/// host=/var/run/postgresql,localhost port=1234 user=postgres password='password with spaces'
 /// ```
 ///
 /// ```not_rust
@@ -117,15 +117,15 @@ use tokio_postgres::{Error, Socket};
 /// ```
 ///
 /// ```not_rust
-/// postgresql://user:password@%2Fvar%2Flib%2Fpostgresql/mydb?connect_timeout=10
+/// postgresql://user:password@%2Fvar%2Frun%2Fpostgresql/mydb?connect_timeout=10
 /// ```
 ///
 /// ```not_rust
 /// postgresql://user@host1:1234,host2,host3:5678?target_session_attrs=read-write
 /// ```
 ///
 /// ```not_rust
-/// postgresql:///mydb?user=user&host=/var/lib/postgresql
+/// postgresql:///mydb?user=user&host=/var/run/postgresql
 /// ```
 #[derive(Clone)]
 pub struct Config {

tokio-postgres/src/config.rs

@@ -178,7 +178,7 @@ pub enum Host {
 /// ```
 ///
 /// ```not_rust
-/// host=/var/lib/postgresql,localhost port=1234 user=postgres password='password with spaces'
+/// host=/var/run/postgresql,localhost port=1234 user=postgres password='password with spaces'
 /// ```
 ///
 /// ```not_rust
@@ -203,15 +203,15 @@ pub enum Host {
 /// ```
 ///
 /// ```not_rust
-/// postgresql://user:password@%2Fvar%2Flib%2Fpostgresql/mydb?connect_timeout=10
+/// postgresql://user:password@%2Fvar%2Frun%2Fpostgresql/mydb?connect_timeout=10
 /// ```
 ///
 /// ```not_rust
 /// postgresql://user@host1:1234,host2,host3:5678?target_session_attrs=read-write
 /// ```
 ///
 /// ```not_rust
-/// postgresql:///mydb?user=user&host=/var/lib/postgresql
+/// postgresql:///mydb?user=user&host=/var/run/postgresql
 /// ```
 #[derive(Clone, PartialEq, Eq)]
 pub struct Config {