internal/report: fix max line length handling

The intent is that a single-word line greater than 100 characters
is allowed. The code was checking the entire content, not
just the current line.

Also display the line in the error.

Change-Id: I8ad83d25c905e0a7ff13612cfe829df540897fb8
Reviewed-on: https://go-review.googlesource.com/c/vulndb/+/494936
Run-TryBot: Jonathan Amsterdam <[email protected]>
Reviewed-by: Tatiana Bradley <[email protected]>
TryBot-Result: Gopher Robot <[email protected]>

Author: jba

internal/report/lint.go

@@ -210,10 +210,10 @@ func (r *Report) lintLineLength(field, content string, addIssue func(string)) {
 		if len(line) <= maxLineLength {
 			continue
 		}
-		if !strings.Contains(content, " ") {
+		if !strings.Contains(line, " ") {
 			continue // A single long word is OK.
 		}
-		addIssue(fmt.Sprintf("%v contains line > %v characters long", field, maxLineLength))
+		addIssue(fmt.Sprintf("%v contains line > %v characters long: %q", field, maxLineLength, line))
 		return
 	}
 }