Fix pattern matches

This commit fixes three lines of code that use Bash substring matching. In each case, a list of strings to match was enclosed in brackets. This resulted in a match if the string to test contained any character from any of the strings to match. This commit fixes the issue by removing the brackets.

(The bugs were introduced in b8e9b09 and 8149c2d)

Author: David Cooper

testssl.sh

@@ -3370,7 +3370,7 @@ run_cookie_flags() {     # ARG1: Path
      fi
 
      if [[ ! "$HTTP_STATUS_CODE" =~ 20 ]]; then
-          if [[ "$HTTP_STATUS_CODE" =~ [301|302] ]]; then
+          if [[ "$HTTP_STATUS_CODE" =~ 301|302 ]]; then
                msg302=" -- maybe better try target URL of 30x"
                msg302_=" (30x detected, better try target URL of 30x)"
           else
@@ -11312,7 +11312,7 @@ run_npn() {
           fileout "$jsonID" "INFO" "not offered"
      else
           # now comes a strange thing: "Protocols advertised by server:" is empty but connection succeeded
-          if [[ "$tmpstr" =~ [h2|spdy|http] ]]; then
+          if [[ "$tmpstr" =~ h2|spdy|http ]]; then
                out "$tmpstr"
                outln " (advertised)"
                fileout "$jsonID" "INFO" "offered with $tmpstr (advertised)"
@@ -16854,7 +16854,7 @@ run_ccs_injection(){
                fileout "$jsonID" "OK" "not vulnerable" "$cve" "$cwe"
           fi
      elif [[ "${tls_hello_ascii:0:4}" == "1503" ]]; then
-          if [[ ! "${tls_hello_ascii:5:2}" =~ [03|02|01|00] ]]; then
+          if [[ ! "${tls_hello_ascii:5:2}" =~ 03|02|01|00 ]]; then
                pr_warning "test failed "
                out "no proper TLS reply (debug info: protocol sent: 1503${tls_hexcode#x03, x}, reply: ${tls_hello_ascii:0:14}"
                fileout "$jsonID" "DEBUG" "test failed, around line $LINENO, debug info (${tls_hello_ascii:0:14})" "$cve" "$cwe" "$hint"