Fail CI when examples fail to build

_example/build.sh

@@ -4,12 +4,14 @@ export GO111MODULE=on
 DIR=$(cd $(dirname $0); pwd)
 BIN_DIR=$(cd $(dirname $(dirname $0)); pwd)/bin
 
+RESULT=0
+
 mkdir -p ${BIN_DIR}
-go build -o ${BIN_DIR}/exec-command ${DIR}/exec-command/main.go
-go build -o ${BIN_DIR}/http-prompt ${DIR}/http-prompt/main.go
-go build -o ${BIN_DIR}/live-prefix ${DIR}/live-prefix/main.go
-go build -o ${BIN_DIR}/simple-echo ${DIR}/simple-echo/main.go
-go build -o ${BIN_DIR}/simple-echo-cjk-cyrillic ${DIR}/simple-echo/cjk-cyrillic/main.go
-go build -o ${BIN_DIR}/even-lexer ${DIR}/even-lexer/main.go
-go build -o ${BIN_DIR}/bang-executor ${DIR}/bang-executor/main.go
-go build -o ${BIN_DIR}/automatic-indenter ${DIR}/automatic-indenter/main.go
+
+for absolute in ${DIR}/*/; do
+ relative=${absolute#*_example}
+ relative=${relative%/}
+ go build -o ${BIN_DIR}${relative} ${absolute}/main.go || RESULT=1
+done
+
+exit $RESULT

_example/http-prompt/main.go

@@ -160,7 +160,6 @@ func executor(in string) {
 
 func completer(in prompt.Document) ([]prompt.Suggest, istrings.RuneNumber, istrings.RuneNumber) {
  endIndex := in.CurrentRuneIndex()
- in.
  w := in.GetWordBeforeCursor()
  if w == "" {
  return []prompt.Suggest{}, 0, 0