refactor/polish ~ fix cargo clippy complaints (needless_lifetimes)

src/factor/build.rs

@@ -149,5 +149,5 @@ const PREAMBLE: &'static str = r##"/*
 // Please do not edit by hand. Instead, modify and
 // re-run src/factor/gen_tables.rs.
 
-pub const P_INVS_U64: &'static [(u64, u64, u64)] = &[
+pub const P_INVS_U64: &[(u64, u64, u64)] = &[
    "##;

src/id/id.rs

@@ -67,8 +67,8 @@ mod audit {
     }
 }
 
-static SYNTAX: &'static str = "[OPTION]... [USER]";
+static SYNTAX: &str = "[OPTION]... [USER]";
-static SUMMARY: &'static str = "Print user and group information for the specified USER,\n or (when USER omitted) for the current user.";
+static SUMMARY: &str = "Print user and group information for the specified USER,\n or (when USER omitted) for the current user.";
 
 pub fn uumain(args: Vec<String>) -> i32 {
     let mut opts = new_coreopts!(SYNTAX, SUMMARY, "");

src/install/install.rs

@@ -74,7 +74,7 @@ pub fn uumain(args: Vec<String>) -> i32 {
     };
 
     let paths: Vec<PathBuf> = {
-        fn string_to_path<'a>(s: &'a String) -> &'a Path {
+        fn string_to_path(s: &String) -> &Path {
             Path::new(s)
         };
         let to_owned = |p: &Path| p.to_owned();

src/mv/mv.rs

@@ -124,7 +124,7 @@ pub fn uumain(args: Vec<String>) -> i32 {
     };
 
     let paths: Vec<PathBuf> = {
-        fn strip_slashes<'a>(p: &'a Path) -> &'a Path {
+        fn strip_slashes(p: &Path) -> &Path {
             p.components().as_path()
         }
         let to_owned = |p: &Path| p.to_owned();

src/od/prn_char.rs

@@ -30,7 +30,7 @@ fn format_item_a(p: u64) -> String {
     format!("{:>4}", A_CHRS.get(b as usize).unwrap_or(&"??"))
 }
 
-static C_CHRS: [&'static str; 128] = [
+static C_CHRS: [&str; 128] = [
     "\\0", "001", "002", "003", "004", "005", "006", "\\a", "\\b", "\\t", "\\n", "\\v", "\\f",
     "\\r", "016", "017", "020", "021", "022", "023", "024", "025", "026", "027", "030", "031",
     "032", "033", "034", "035", "036", "037", " ", "!", "\"", "#", "$", "%", "&", "'", "(", ")",

src/printf/tokenize/num_format/formatters/base_conv/mod.rs

@@ -41,12 +41,12 @@ pub struct DivOut<'a> {
     pub remainder: Remainder<'a>,
 }
 
-pub fn arrnum_int_div_step<'a>(
+pub fn arrnum_int_div_step(
-    rem_in: Remainder<'a>,
+    rem_in: Remainder,
     radix_in: u8,
     base_ten_int_divisor: u8,
     after_decimal: bool,
-) -> DivOut<'a> {
+) -> DivOut {
     let mut rem_out = Remainder {
         position: rem_in.position,
         replace: Vec::new(),

src/shred/shred.rs

@@ -31,7 +31,7 @@ const BLOCK_SIZE: usize = 512;
 const NAMESET: &str = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_.";
 
 // Patterns as shown in the GNU coreutils shred implementation
-const PATTERNS: [&'static [u8]; 22] = [
+const PATTERNS: [&[u8]; 22] = [
     b"\x00",
     b"\xFF",
     b"\x55",

src/stat/stat.rs

@@ -85,10 +85,10 @@ macro_rules! print_adjusted {
     }
 }
 
-static NAME: &'static str = "stat";
+static NAME: &str = "stat";
-static VERSION: &'static str = env!("CARGO_PKG_VERSION");
+static VERSION: &str = env!("CARGO_PKG_VERSION");
 
-const MOUNT_INFO: &'static str = "/etc/mtab";
+const MOUNT_INFO: &str = "/etc/mtab";
 pub const F_ALTER: u8 = 1;
 pub const F_ZERO: u8 = 1 << 1;
 pub const F_LEFT: u8 = 1 << 2;
@@ -183,7 +183,7 @@ impl ScanUtil for str {
     }
 }
 
-pub fn group_num<'a>(s: &'a str) -> Cow<'a, str> {
+pub fn group_num(s: &str) -> Cow<str> {
     assert!(s.chars().all(char::is_numeric));
     if s.len() < 4 {
         return s.into();