Merge pull request SlatherOrg#3 from viteinfinite/fix-whitespaces

Fix whitespace issues

Author: viteinfinite

lib/slather/project.rb

@@ -106,7 +106,7 @@ def profdata_llvm_cov_output
         raise StandardError, "No Coverage.profdata files found. Please make sure the \"Code Coverage\" checkbox is enabled in your scheme's Test action or the build_directory property is set."
       end
       xcode_path = `xcode-select -p`.strip
-      llvm_cov_command = xcode_path + "/Toolchains/XcodeDefault.xctoolchain/usr/bin/llvm-cov show -instr-profile #{coverage_profdata} #{binary_file}"
+      llvm_cov_command = "\"#{xcode_path}/Toolchains/XcodeDefault.xctoolchain/usr/bin/llvm-cov\" show -instr-profile \"#{coverage_profdata}\" \"#{binary_file}\""
       `#{llvm_cov_command}`
     end
     private :profdata_llvm_cov_output