link: lowercase error strings to satisfy staticcheck

Fixes `ST1005: error strings should not be capitalized`.

Signed-off-by: Timo Beckers <[email protected]>

Author: ti-mo

Diff for: link/kprobe_multi.go

@@ -85,10 +85,10 @@ func kprobeMulti(prog *ebpf.Program, opts KprobeMultiOptions, flags uint32) (Lin
 		return nil, fmt.Errorf("one of Symbols or Addresses is required: %w", errInvalidInput)
 	}
 	if syms != 0 && addrs != 0 {
-		return nil, fmt.Errorf("Symbols and Addresses are mutually exclusive: %w", errInvalidInput)
+		return nil, fmt.Errorf("fields Symbols and Addresses are mutually exclusive: %w", errInvalidInput)
 	}
 	if cookies > 0 && cookies != syms && cookies != addrs {
-		return nil, fmt.Errorf("Cookies must be exactly Symbols or Addresses in length: %w", errInvalidInput)
+		return nil, fmt.Errorf("field Cookies must be exactly Symbols or Addresses in length: %w", errInvalidInput)
 	}
 
 	attachType := sys.BPF_TRACE_KPROBE_MULTI

Diff for: link/uprobe_multi.go

@@ -70,13 +70,13 @@ func (ex *Executable) uprobeMulti(symbols []string, prog *ebpf.Program, opts *Up
 	refCtrOffsets := len(opts.RefCtrOffsets)
 
 	if addrs == 0 {
-		return nil, fmt.Errorf("Addresses are required: %w", errInvalidInput)
+		return nil, fmt.Errorf("field Addresses is required: %w", errInvalidInput)
 	}
 	if refCtrOffsets > 0 && refCtrOffsets != addrs {
-		return nil, fmt.Errorf("RefCtrOffsets must be exactly Addresses in length: %w", errInvalidInput)
+		return nil, fmt.Errorf("field RefCtrOffsets must be exactly Addresses in length: %w", errInvalidInput)
 	}
 	if cookies > 0 && cookies != addrs {
-		return nil, fmt.Errorf("Cookies must be exactly Addresses in length: %w", errInvalidInput)
+		return nil, fmt.Errorf("field Cookies must be exactly Addresses in length: %w", errInvalidInput)
 	}
 
 	attr := &sys.LinkCreateUprobeMultiAttr{