Align worker output after prefix "From worker" (#24716)

* Align worker output after prefix "From worker"

* More updates to align worker output (#2)

* Update ZMQCM.jl

* Update UnixDomainCM.jl

* Update runtests.jl

* Update embedding-test.jl

Author: GregPlowman

base/distributed/cluster.jl

@@ -245,12 +245,12 @@ end
 function redirect_worker_output(ident, stream)
     @schedule while !eof(stream)
         line = readline(stream)
-        if startswith(line, "\tFrom worker ")
+        if startswith(line, "      From worker ")
             # STDOUT's of "additional" workers started from an initial worker on a host are not available
             # on the master directly - they are routed via the initial worker's STDOUT.
             println(line)
         else
-            println("\tFrom worker $(ident):\t$line")
+            println("      From worker $(ident):\t$line")
         end
     end
 end

examples/clustermanager/0mq/ZMQCM.jl

@@ -275,7 +275,7 @@ end
 function print_worker_stdout(io, pid)
     @schedule while !eof(io)
         line = readline(io)
-        println("\tFrom worker $(pid):\t$line")
+        println("      From worker $(pid):\t$line")
     end
 end
 

examples/clustermanager/simple/UnixDomainCM.jl

@@ -83,7 +83,7 @@ end
 function print_worker_stdout(io, pid)
     @schedule while !eof(io)
         line = readline(io)
-        println("\tFrom worker $(pid):\t$line")
+        println("      From worker $(pid):\t$line")
     end
 end
 

examples/embedding/embedding-test.jl

@@ -24,5 +24,5 @@ end
     @test parse(Float64, lines[1]) ≈ sqrt(2)
     @test lines[8] == "called bar"
     @test lines[9] == "calling new bar"
-    @test lines[10] == "\tFrom worker 2:\tTaking over the world..."
+    @test lines[10] == "      From worker 2:\tTaking over the world..."
 end

test/runtests.jl

@@ -119,7 +119,7 @@ cd(dirname(@__FILE__)) do
         # the test fails, catch the error,
         # and either way, append the results
         # to the overall aggregator
-        n > 1 && print("\tFrom worker 1:\t")
+        n > 1 && print("      From worker 1:\t")
         isolate = true
         t == "SharedArrays" && (isolate = false)
         local resp