Change args placeholders

README.md

@@ -39,21 +39,20 @@ go install github.com/n0madic/cloudping@latest
 ## Usage
 
 ```
-Usage: cloudping [--all] [--alt-ping] [--count COUNT] [--region REGION] [--location LOCATION] [--provider PROVIDER] [--timeout TIMEOUT]
+Usage: cloudping [--all] [--alt-ping] [--count NUM] [--hide-errors] [--region NAME] [--location NAME] [--provider NAME] [--timeout DURATION]
 
 Options:
   --all, -a              Scan all providers
   --alt-ping             Use alternative ICMP ping method
-  --count COUNT, -c COUNT
-                         Number of pings to send [default: 4]
+  --count NUM, -c NUM    Number of pings to send [default: 4]
   --hide-errors, -e      Hide errors from results
-  --region REGION, -r REGION
+  --region NAME, -r NAME
                          Filter by regions, can be specified multiple times
-  --location LOCATION, -l LOCATION
+  --location NAME, -l NAME
                          Filter by location, can be specified multiple times
-  --provider PROVIDER, -p PROVIDER
+  --provider NAME, -p NAME
                          Choose provider for ping [default: aws]
-  --timeout TIMEOUT, -t TIMEOUT
+  --timeout DURATION, -t DURATION
                          Timeout before ping ends [default: 5s]
   --help, -h             display this help and exit
   ```

config.go

@@ -9,12 +9,12 @@ import (
 type config struct {
 	All            bool          `arg:"--all,-a" help:"Scan all providers"`
 	AltPing        bool          `arg:"--alt-ping" help:"Use alternative ICMP ping method"`
-	Count          int           `arg:"--count,-c" default:"4" help:"Number of pings to send"`
+	Count          int           `arg:"--count,-c" placeholder:"NUM" default:"4" help:"Number of pings to send"`
 	HideErrors     bool          `arg:"--hide-errors,-e" help:"Hide errors from results"`
-	FilterRegion   []string      `arg:"--region,-r,separate" help:"Filter by regions, can be specified multiple times"`
-	FilterLocation []string      `arg:"--location,-l,separate" help:"Filter by location, can be specified multiple times"`
-	Provider       string        `arg:"--provider,-p" default:"aws" help:"Choose provider for ping"`
-	Timeout        time.Duration `arg:"--timeout,-t" default:"5s" help:"Timeout before ping ends"`
+	FilterRegion   []string      `arg:"--region,-r,separate" placeholder:"NAME" help:"Filter by regions, can be specified multiple times"`
+	FilterLocation []string      `arg:"--location,-l,separate" placeholder:"NAME" help:"Filter by location, can be specified multiple times"`
+	Provider       string        `arg:"--provider,-p" placeholder:"NAME" default:"aws" help:"Choose provider for ping"`
+	Timeout        time.Duration `arg:"--timeout,-t" placeholder:"DURATION" default:"5s" help:"Timeout before ping ends"`
 }
 
 func (c *config) Description() string {