readwwwlog: fix text/plain check, only sleep for dpaste

.config/zsh/functions/readwwwlog

@@ -43,12 +43,11 @@ for url in ${urls}; do
         cmd=(${TERMINAL} ${termopts} -e ${cmd})
     fi
 
-    if [[ ${headers[(I)*text/plain]} -ne 0 ]] || \
+    if [[ ${headers[(I)*text/plain*]} -ne 0 ]] || \
            [[ ${headers[(I)*HTTP/1.1 405*]} -ne 0 ]]; then # No HEAD allowed
-        sleep 1 # dpaste.com workaround
+        [[ ${url} =~ 'dpaste\.com' ]] && sleep 1
         curl --silent --location --output ${file} ${url}
         ${cmd} ${file}
-
         rm ${file}
     elif [[ ${headers[(I)*application/zip]} -ne 0 ]]; then
         rm ${file}
@@ -63,7 +62,6 @@ for url in ${urls}; do
                 ${cmd} ${txt}
             fi
         done
-
         rm -r ${dir}
     else
         ${default_cmd} ${url}