Update to clap 3 beta 4

This also requires a bump to Rust 1.54.

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         platform: [ubuntu-latest, macos-latest, windows-latest]
-        rust: [1.53, stable]
+        rust: [1.54, stable]
     runs-on: ${{ matrix.platform }}
     steps:
       - uses: actions/checkout@v2
@@ -60,7 +60,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: actions-rs/toolchain@v1
       with:
-        toolchain: 1.53
+        toolchain: 1.54
         override: true
     - run: rustup component add rustfmt
     - uses: actions-rs/cargo@v1

Cargo.toml

@@ -19,7 +19,7 @@ path = "src/main.rs"
 ansi_term = "0.12.0"
 app_dirs = { version = "2", package = "app_dirs2" }
 atty = "0.2"
-clap = { version = "3.0.0-beta.2" }
+clap = { version = "3.0.0-beta.4" }
 env_logger = { version = "0.9", optional = true }
 flate2 = "1"
 log = "0.4"

clippy.toml

@@ -1 +1 @@
-msrv = "1.53"
+msrv = "1.54"

docs/src/usage.txt

@@ -1,26 +1,28 @@
 tealdeer 1.4.1
+
 Danilo Bargen <mail@dbrgn.ch>
+
 A fast TLDR client
 
 USAGE:
-    tldr [OPTIONS] [command]...
+    tldr [OPTIONS] [COMMAND]...
 
 ARGS:
-    <command>...    The command to show (e.g. `tar` or `git log`)
+    <COMMAND>...    The command to show (e.g. `tar` or `git log`)
 
 OPTIONS:
+    -h, --help                   Print help information
     -l, --list                   List all commands in the cache
-    -f, --render <render>        Render a specific markdown file
-    -o, --os <os>                Override the operating system [linux, macos, sunos, windows]
-    -L, --language <language>    Override the language
+    -f, --render <RENDER>        Render a specific markdown file
+    -o, --os <OS>                Override the operating system [linux, macos, sunos, windows]
+    -L, --language <LANGUAGE>    Override the language
     -u, --update                 Update the local cache
     -c, --clear-cache            Clear the local cache
     -p, --pager                  Use a pager to page output
-    -q, --quiet                  Suppress informational messages
     -m, --markdown               Display the raw markdown instead of rendering it
+    -q, --quiet                  Suppress informational messages
         --show-paths             Show file and directory paths used by tealdeer
         --config-path            Show config file path
         --seed-config            Create a basic config
-        --color <color>          Control whether to use color [always, auto, never]
+        --color <COLOR>          Control whether to use color [always, auto, never]
     -v, --version                Prints the version
-    -h, --help                   Prints help information