updated teamcity_api.sh

teamcity_api.sh

@@ -158,6 +158,8 @@ else
     read -r -a CURL_OPTS <<< "-sS --fail --connect-timeout 3"
 fi
 
+# case insensitive regex matching
+shopt -s nocasematch
 # XML by default :-/
 if ! [[ "$*" =~ Accept: ]]; then
     CURL_OPTS+=(-H "Accept: application/json")
@@ -165,6 +167,8 @@ fi
 if ! [[ "$*" =~ Content-Type: ]]; then
     CURL_OPTS+=(-H "Content-Type: application/json")
 fi
+# unset to return to default setting for safety to avoid hard to debug changes of behaviour elsewhere
+shopt -u nocasematch
 
 # don't enforce as hard requirements here, instead try alternation further down and construct from what's available
 #check_env_defined "TEAMCITY_URL"