Merge pull request #4115 from NlightNFotis/goto-gcc-gitignore

[TRIVIAL] Add goto-gcc to .gitignore

Author: tautschnig

.gitignore

@@ -99,6 +99,7 @@ src/cbmc/cbmc.exe
 src/goto-analyzer/goto-analyzer
 src/goto-analyzer/goto-analyzer.exe
 src/goto-cc/goto-cc
+src/goto-cc/goto-gcc
 src/goto-cc/goto-cc.exe
 src/goto-cc/goto-cl.exe
 src/goto-instrument/goto-instrument