Grunt messy output

$ grunt
Running "clean:0" (clean) task
Cleaning "dist"...OK

Running "prepare-dist" task
Folder created
Folder created

Running "build" task

Running "less:prod" (less) task
File app/css/styles.css created.

Running "htmlmin:dist" (htmlmin) task
File dist/index.html created.
Uncompressed size: 1091 bytes.
Compressed size: 263 bytes gzipped (1026 bytes minified).

Running "imagemin:dist" (imagemin) task
✔ app/css/jquery-ui/cupertino/images/ui-bg_flat_15_cd0a0a_40x100.png (saved 119.00B)
✔ app/css/jquery-ui/cupertino/images/ui-bg_highlight-hard_70_000000_1x100.png (saved 1.04Kb)
✔ app/css/jquery-ui/cupertino/images/ui-bg_highlight-soft_25_ffef8f_1x100.png (saved 1.17Kb)
✔ app/css/jquery-ui/cupertino/images/ui-bg_highlight-hard_100_f2f5f7_1x100.png (saved 1.20Kb)

Running "cssmin:dist" (cssmin) task
File dist/css/styles.css created.
Original: 40229 bytes.
Minified: 38327 bytes.

Running "uglify:dist" (uglify) task
File "dist/application.js" created.

Running "jasmine:test" (jasmine) task
Testing jasmine specs via phantom
✔ app/css/jquery-ui/cupertino/images/ui-bg_highlight-soft_100_deedf7_1x100.png (saved 1.43Kb)
✔ app/css/jquery-ui/cupertino/images/ui-bg_diagonals-thick_90_eeeeee_40x40.png (saved 1.10Kb)
✔ app/css/jquery-ui/cupertino/images/ui-bg_glass_100_e4f1fb_1x400.png (saved 1.22Kb)
   created:	app/templates.js
   created:	app/index.js
✔ app/imgs/apple-touch-icon.png (already optimized)
✔ app/imgs/apple-touch-icon-57x57-precomposed.png (already optimized)
✔ app/imgs/apple-touch-icon-114x114-precomposed.png (already optimized)
✔ app/css/jquery-ui/cupertino/images/ui-bg_glass_50_3baae3_1x400.png (saved 1.14Kb)
✔ app/css/jquery-ui/cupertino/images/ui-bg_glass_80_d7ebf9_1x400.png (saved 1.16Kb)
✔ app/imgs/icons/projects.png (already optimized)
✔ app/imgs/apple-touch-icon-72x72-precomposed.png (already optimized)
✔ app/imgs/apple-touch-icon-precomposed.png (already optimized)

Done, without errors.