Auto merge of #52646 - ljedrz:single_char_pattern, r=michaelwoerister

Change single char str patterns to chars

A `char` is faster.

2 files changed, 3 insertions, 3 deletions

diff --git a/src/libstd/sys/redox/net/mod.rs b/src/libstd/sys/redox/net/mod.rs
index 0291d7f0e92..67f22231d5f 100644
--- a/src/libstd/sys/redox/net/mod.rs
+++ b/src/libstd/sys/redox/net/mod.rs
@@ -41,12 +41,12 @@ impl Iterator for LookupHost {
 pub fn lookup_host(host: &str) -> Result<LookupHost> {
     let mut ip_string = String::new();
     File::open("/etc/net/ip")?.read_to_string(&mut ip_string)?;
-    let ip: Vec<u8> = ip_string.trim().split(".").map(|part| part.parse::<u8>()
+    let ip: Vec<u8> = ip_string.trim().split('.').map(|part| part.parse::<u8>()
                                .unwrap_or(0)).collect();
 
     let mut dns_string = String::new();
     File::open("/etc/net/dns")?.read_to_string(&mut dns_string)?;
-    let dns: Vec<u8> = dns_string.trim().split(".").map(|part| part.parse::<u8>()
+    let dns: Vec<u8> = dns_string.trim().split('.').map(|part| part.parse::<u8>()
                                  .unwrap_or(0)).collect();
 
     if ip.len() == 4 && dns.len() == 4 {
diff --git a/src/libstd/sys/unix/os.rs b/src/libstd/sys/unix/os.rs
index 82d05f78850..addf555eb10 100644
--- a/src/libstd/sys/unix/os.rs
+++ b/src/libstd/sys/unix/os.rs
@@ -564,7 +564,7 @@ fn glibc_version_cstr() -> Option<&'static CStr> {
 // ignoring any extra dot-separated parts. Otherwise return None.
 #[cfg(target_env = "gnu")]
 fn parse_glibc_version(version: &str) -> Option<(usize, usize)> {
-    let mut parsed_ints = version.split(".").map(str::parse::<usize>).fuse();
+    let mut parsed_ints = version.split('.').map(str::parse::<usize>).fuse();
     match (parsed_ints.next(), parsed_ints.next()) {
         (Some(Ok(major)), Some(Ok(minor))) => Some((major, minor)),
         _ => None